I think auto start/stop helps manufacturers meet emissions and fuel economy standards. That’s it. Think about your A/C compressor starting and stopping at every red light in Phoenix when it’s 115 in July. That is a problem. How about start/stop on the freeway when you’re stuck in stop-and-go traffic. Not practical. I disable it every time.
Manufacturers love it because it gets their EPA numbers up... The mouthpieces for the manufacturers will tell you that the systems are beefed up and they take care of any issues with engine wear and tear over the life of the car... but talk to the people that actually twist the wrenches and work on these things since they've been adopted by ALL... you'll get a different story, about the cost of repairing these things over time
A mechanic told me never buy a car without the option to shut off the start stop technology. He says it wears the starter out quicker and claims the starter replacement would cause well over what you may save in fuel.
My car is 10 years old next year and I always use stop/start. No replacement parts so far. I believe the feature does not use the starter motor to restart anyway.
@@martinsmith9618 it doesent. I remember I had it on my 21 Ranger and it freaked me out. Didn't know I had it and thought my truck died at a light. But I remember looking it up and it does something with electricity to pause the engine. It doesent completely kill it. That's why the AC still stays cool when the engine stops at a light.
Does anyone figure in the cost of a new starter and battery on the real savings. As we all know there is only so many starts in a starter. I'm sure if you add in repair cost its better to keep this feature off. Yes it save gas but the gas is a very small savings compared to a starter installed.
stater alternator battery wear and tear on the motor I thought a car uses more gas starting than is saved by the stopping the 8 sec s of idling before it automatically restarts
I can’t remember the cost but I know my wife’s car needed the secondary battery for the start stop replaced… and if you make a lot of short trips you may not charge that battery enough.
I can understand using the start stop system in a car that has an integrated electric motor in the drivetrain like a hybrid. My worry is the other systems Bendix starter engages and disengages the flywheel it would wear out prematurely. One other thing, the proper tire pressure for your automobile is not on the tire, it’s all the sticker in the door frame. The pressure on the tire is the maximum pressure allowed for that tire.
Commenting before watching but think if it is longer than 30 seconds and doing more than 6 stops a trip it may be helpful but I'd think that it'd be harder on the battery and starter
Wife’s BMW has this feature, I turn it off always. It’s horrible when I come to a stop sign it shuts down just as I step on gas to continue. The money you save on gas save it for your replacement starter!
I'm getting 38.7 MPG in my 2022 Civic LX. I'm using the stop/start feature because some of our traffic lights can cause idle times of 2 minutes and even 2.5 minutes! I also use ECO mode and although I'm not a hyper-miler I do carefully watch the traffic lights ahead and never race up to them.
So it’ll take years and years and years and years to see any appreciable “savings”. What’s the point; turn it off. The fuel used when people floor it from a stop negates any savings from the auto stop/start anyway
My battery lasted only 2 years with this stupid feature. Worst things is the car would not start at the traffic light after it has shut off the engine.
We turn it off every start. Honda conveniently put the disable button adjacent to the start button. The problem for me is stop signs. We have more stop signs than traffic lights, and having the car turn off only to immediately start back up 2 seconds later is just absurd. It makes sense in something like a Prius where the electric motor launches the car anyway. But shutting down a V6 just to power it right back up 2 seconds later doesn't have any value. Fairly certain it was developed just to game the system during EPA city mileage testing. The city portion of testing includes stretches on the dyno where the car is idled. Well, yeah, if it's off that whole time, it's going to report a gas savings. But that isn't realistic, it's just gaming the system. To each their own. But for us, it gets a thumbs down.
too bad the car companies didn't program the start/stop button the other way around, IF you want it to work then press the button to turn it on. Otherwise you would not have to deal with it every time you got in the car
@@juliet4093 The Honda manual specifically states that if you're stopping X amount of times per hour to disable it. I forget what X is, but it wasn't much. 10?
The auto engine shutoff "feature" has nothing to do with true fuel savings and everything to do with EPA ratings. It's just a manufacturer tactic to get heavier vehicles into production without sanctions, bans, etc. One look at driver behavior on any road or highway will tell you, actual drivers could care less about fuel efficiency.
I would like to see someone test piston ring and cylinder wear after 100000 miles on two of the same engines. One with it on and the other one off....?
You may want to advise people to inflate their tires according to the sticker on the door… not the max on the tires. It was my understanding the door sticker is more accurate (advised this by a Tire manufacturer rep). I’m sure there are exceptions.
@@everymandriver you think this is a joke? tires can pop if you just inflate them. I did it when I was a teen so i would get a stiffer ride, and in one hard corner it actually popped.
Awesome video! Thanks for ALL your knowledge! In 2019 I bought my first vehicle ever can have no clue what I was doing or looking for except all wheel drive and big enough for my growing family and paid 16k in full for a '10 rouge 🤕 ripped off!... Long story short the dealership closed down for good during covid and I now cannot even register it or get a hold of anyone who knows how to fix this issue DMV had no resolution other than trying to get ahold of the dealership owner. Leading to needing getting a new car and your videos are my premier stop for knowledge until I'm ready to pick one that you recommend!
I agree because each time Im at a stop light it takes about 2 sec to turn back on and I honestly feel like it turning off and is actually using more fuel. Constantly turning off/on seems pointless. Im going to turn it OFF.
I love it when the cars in front at a red light have stop/start. then whilst waiting for the green light, I'm not breathing in their exhaust fumes through my cabin ventilation system. Stop/start reduces toxic (NOX SOX.) emissions when stopped. and I'm not polluting the air for the car behind as well.
Think about it from an ENGINEERING Point of View. Your Engine is meant for so many STOP/START cycles. I believe thats around 100 000 or so. I read that they beefed up some of the internals to compensate for the extra cycles, to around 300 000. If true, next time you are out with your AUTO Stop/Start, count how many times yours turns OFF and ON. I think you will find that it's more than 3x (100 000 x 3 = 300 000). So ask yourself what about the other parts that take a lot of wear and tear on this type of driving? STARTER? BATTERY? FUEL PUMP? and I am sure other parts as well. I think that any money you save, again from what I have been reading, around 3% REAL WORLD consumption. So, if the average is 13 500 miles per year driven, then 3% savings = roughly 405 miles "saved" or at 25.4 mpg (2021 epa standard) would = 15.94 Gallons "Saved" at say $4 per gallon = $63.78 "saved" over the year. My Question is this, if your Fuel Pump, Battery(s), Starter wears out prematurely form the EXCESSIVE Stop/Start cycles, what does that cost? Let's say it takes 10 yrs for that to happen. You have "saved" a minimum of $637.80. Battery might only cost your a Couple of Hundred and a Hundred to install (Roughly), but what of the other parts? Say a Starter? Ranges from minimum $500 to more than $1500. Fuel Pump? What happens if these parts go "early" from the excessive extra cycles? No one is sure of the long term results yet as its still a relatively NEW technology that is still being perfected. Something to think about.
My 2002 Prius starts and stops all the time. It has no starter, alternator, clutch, or shifting. The 300V battery spools the engine up in the blink of an eye. The engine itself is not built any differently to handle continuously starting and stopping, it's an Echo engine with different valve timing. There are Prii out there with 300,000 mi with no engine issues.
I have a Pacifica and I absolutely hate start stop. But you can disable it when the little aux battery that runs it wears out...just don’t replace it. Then your car becomes normal and not an aggravation.
As a mechanic I see this all the time. The auto starters generally run about twice as much as the regular starter and generally go out two to three times as often. So by the time you factor in the difference and replacing the starter multiple times would the difference in fuel outweigh that? I don't know exactly how much fuel it saves but let's say the difference in replacing the starter and extra time plus having to pay twice as much for the starter would be about $700 every 8 years. So if it's going to save you $100 in fuel a year then the auto start might save you money. If it's going to save you less it's probably not saving you any money overall.
I found with my Toyota prius hybrid over twenty years, the main drawback bing the need for expensive synthetic oil to prevent wear caused by letting the oil pressure raise and fall in all temperature conditions.
then compare the savings on fuel against replacing the starter before its time because of the constant starting of the engine. Then the premature wear on mechanical parts that requires engine oil to stay healthy, those parts not being fulling coated with oil at every restart. I just turn the start/stop feature off every time I get in the car. If I know I'll be sitting for several minutes at the railroad crossing or any other lengthy wait I'll turn the engine off, but waiting at the intersection on a red light? No
Not only the starter. But the battery is also a costly one to support so many engine start... and it's not a common battery... and that add another huge cost that gas saving won't compensate!!
What about the wear and tear on the starter how much to start and stop shorting a life of the starter. I think Ram has the best idea with the belt start doesn't affect the actual car starter.
Great video! I have a 2017 Accord, which was one of the last Accords with the V6 option. Mine has the V6 engine and it has the auto cylinder disengagement when you are cruising. It is an automatic system and there isn't even an indicator when it does it, but even when I am cruising at higher speeds, if I keep the cruise control on (or even keep a steady foot), I have noticed that I usually do better mileage wise. I have the 1st Gen Ridgeline as well with the V6, but it does not have that system. I know the current generation has it, so I wonder if 2nd Gen Ridgeline owners who have owned the 1st Gen model notice the difference in mileage they get from their usual commutes? Lastly, I have a cousin who I think is more in the mindset of the idling at stops as a good thing, as he always puts his car (it's an automatic) in neutral when he is at a stop sign or signal light. I have told him in the past that it is not good to do that, especially with modern cars that have a "brain" that are adjusting and adapting to the different driving habits that occur at any given moment, but he thinks he is saving gas, or who knows. Even though I told him that the vehicle is still on, so even when idling, it is still consuming gas in the still running engine, he continues to do it. I told him to especially be careful if he does this on any inclines or declines on the roadways. Oh well, I guess we all have different driving habits and quirks that are different.
The real question is does it save gas when it works? Mine on my jeep always says that it's not ready. I went to dealer so many times I gave up on it working
I think the bigger question would be is , does frequent start and stop impact components in your vehicle related to this operation and if it does then what would the cost to repair components be to the related cost of fuel saved over time ? I know there would be a variable depending on how you drive.
Most modern cars have auto stop start. They also have a switch to turn the feature off. Auto stop start usually does not use your starter. Because of direct fuel injection, it uses a compression start. The engine stops with one cylinder near the top of it compression stroke right before fuel has been injected. When you take your foot off the brakes, fuel is injected and the spark plug fires starting the engine. Here’s the downsides. Everytime your engine shuts down in gets heat soak which causes carbon deposits. As fuel is no longer port injected, there is no fuel to clean the back of the intake values. Carbon build up on intake valves reduces engine performance and efficiency. Every time the an engine starts it puts strain on the value train specifically the timing chain (belt) and tensioners. But it gets worse. Many modern engines use turbo chargers which spin at very high speeds. The bearing it lubricated and cooled with engine oil. The harder you push the engine the more heat is generated in the turbo bearing. If you turn the engine off hard operation (rapid starts etc) the oil in the turbo bearing solidifies (this is called coking the bearing). Now imagine this happening 50 times every time you drive the car. If😊 you want to save your engine, turn off the auto stop start button when ever you drive your car.
So… TL:DW if the car idles for more than 7 seconds, it’s worth it… if the car idles for less than 7 seconds, it’s not worth it… Good video, I’ll be paying more attention to this than I actually wanted to now, lol!
I'd like to know how much it cost the consumer after the government mandated start stop systems. R&D to figure out how to make it work, actual cost for programing, material costs etc. What is the true cost per vehicle to implement start stop & how long will it take to recover that cost?
Good point - I appreciate the feedback. If you visit quotes.everymandriver.com you can see the best deals/prices on new cars/trucks in your zip code! It’s a free search engine and it’s Everyman Driver Approved!
@@everymandriver Yeah, but my wife has it on her Hyundai Kona and hates the slight hesitation caused by the engine restarting when trying to pull out into traffic. Also, could this be a safety issue if the engine for some reason doesn't stay restarted (stalls) and leaves you halfway into traffic?
@@everymandriver you’re right the science says it works it does save gas, it’s just I drove numerous cars and most of the start stop felt terrible, hesitation etc. and on some I couldn’t even tell the car restarted. Great video always love your content.
How much a vehicle can cost for having such a feature? Can gas savings compensate for the cost of such a vehicle?... How costly will it be if you have to pay for any troubleshooting if you have any issue with it? And this last one, those vehicles require a special battery... and that will add a lot of $$$.... so what is the real benefit to the owner ???
lol ... start stop was ONLY created to save gas on paper. It only works for the manufacturers because of the way the EPA CALCUATES milage. It is NOT a fuel saving feature - it was only implemented so that the OEMs could hit CAFE (corporate average fuel economy) targets arbitrarily established by the government. Starting your car actually uses more fuel then just letting it idle. There most certainly is more wear and tear on components, namely at least your starter. Not a "feature. I disabled mine when my car was new.
Ask that scientist, what charges the battery when the car idles, vs what charges the batteries when the engine stops. Remember that if the car or truck has large batteries to power up the starter(which is heavy and requires lots of amps to start the engine) and power up the computers, navigation, and any new citizen monitoring and the proposed remote “kill switches”. Our SUV has dual batteries and we started getting the “low battery” alerts on both the Main Battery and the key fob batteries.
I have a Camry Hybrid and if it’s just a quick stop 🛑 probably not much of a difference. At times if your leaving it for a minute or more I am going to see the difference. In winter ❄️ running my heat or summertime running 🏃♀️ my A/C I will see a huge drop in my fuel ⛽️ economy because the battery 🔋 drains quickly making the engine come on draining fuel ⛽️ while idling. Just seeing my engine on a cold 🥶 morning warming up 🆙 you can see the amount of fuel ⛽️ being used to get my engine up to temperature 🤒. Fuel ⛽️ economy can be average 38 mpg down to 28 mpg on a cold 🥶 winter ❄️ day. Excessive idling my fuel ⛽️economy drops ☔️ fast 💨. When not idling life is great 😊.
I would say yes it does. Buy. And a big but. What you save in fuel it will never cover the cost of say. New battery. Maybe a starter. Not forgetting the starter ring. There is more wear and tear on starting the car.
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Almost every argument against stop/start has been addressed by manufacturers. "It'll wear out my starter and battery faster." - Car makers are putting more robust and better built starters and deep cycle batteries into modern cars to combat the extra wear on these components. "The engine wears out every time it's started." Only when it's cold, and the wear is not that much, also the stop/start is designed to not activate until the engine is warmed up. Wear upon starting a warm engine is so minimal it's barely measurable. Oil takes at least 5 minutes to drain back into the oil pan. How many engines have been through thousands of cold starts in their lifetimes and are north of 150,000 miles, still running? "I'll burn up in the summer and freeze in the winter when the engine stops at a light." - Systems are designed to either re-start automatically or not shut down when the climate control (a/c or heat) is running or at high fan speed. "What if the battery dies?" - The system monitors the battery charge at all times and will not cycle the stop/start if the battery drops below the charge needed to restart. It will also restart immediately if the voltage begins to get too low. "What if I'm turning or making a u-turn?" Most (not all) cars with the system are designed to not shut down if the steering wheel is turned when stopped.
My 2002 Prius has an electric coolant pump to keep heat going in the winter. When running the A/C, there is a "cold-storage" evaporator that keeps cold blowing with the engine off, since the compressor is NOT electric. Regardless, the engine won't stop if the cabin isn't near the set temperature, or the engine isn't warmed up.
That “Kill” switch may be inside information. A better name would be “the stop to be robbed” feature. Are they betting your life that a device will not be designed to make it easy to stop a victim at the best possible time to rob or carjack them? Remember that “lane departure detection feature” that came out about ten years ago? Imagine driving down the Interstate and the cars in front of you collided, then you attempt to apply your brakes, and find you can’t divert your vehicle away from the impact, because the “lane departure mechanism will not allow or it resists your efforts to avoid the vehicle that lost control and moved into your path.
Most LDW/LKA systems will intentionally disable themselves during hard braking or abrupt steering, because they know such a situation is possible. My grandpa's Acura RDX will disable lane keeping assist if the steering wheel is turned quickly, such as to avoid an object on the road.
This feature is a gimmick. In cold climate it wears down the starter and drains battery. In warm climate it's worse; coolant stops circulating, engine oil stops circulating and cooks in the turbo charger (if there's one), as well as starter motor. And, starting up uses more petrol.
What I have seen is a lot of these savings are calculated by removing the time the car would be ON vs the time it will be OFF. That's not the point. Starting up the car takes fuel and going getting up from Zero rpms is not free energy. simple test. Go 1 mile. Turn the car on and off every 100 ft. Then do it without it and just stop every 100 ft. See which saves you more gas.
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I can't tell you how many times my engine turns off and immediately turns on again just because I inched forward a little bit. Cars don't just come to a dead stop. They stop, then traffic settles. You inch up to close the gap and engine turns back on. Totally useless feature. It doesn't save me any gas whatsoever.
If I wanted to save a little bit of gas by turning my engine off, then I'd turn my engine off. I should have the choice. Some things are more important than "saving gas".
But, did carmakers 'beef up' their starter motors, in order to correctly accommodate this fuel saving feature, in order to engineer a 'correct' solution to added strains on the starter motor? I doubt it, I bet they are still using the same old tired starter motor engineering from 40 years ago!
the title says Start Stop Feature Saving Gas, but that is not what most of the video is about. Of course it saves gas, the question is how much. I figured out I would save about 2 gal per year. Worth it? NO.
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I think auto start/stop helps manufacturers meet emissions and fuel economy standards. That’s it.
Think about your A/C compressor starting and stopping at every red light in Phoenix when it’s 115 in July. That is a problem.
How about start/stop on the freeway when you’re stuck in stop-and-go traffic. Not practical. I disable it every time.
Manufacturers love it because it gets their EPA numbers up... The mouthpieces for the manufacturers will tell you that the systems are beefed up and they take care of any issues with engine wear and tear over the life of the car... but talk to the people that actually twist the wrenches and work on these things since they've been adopted by ALL... you'll get a different story, about the cost of repairing these things over time
A mechanic told me never buy a car without the option to shut off the start stop technology. He says it wears the starter out quicker and claims the starter replacement would cause well over what you may save in fuel.
I hate it.
My car is 10 years old next year and I always use stop/start. No replacement parts so far. I believe the feature does not use the starter motor to restart anyway.
@@martinsmith9618 it doesent. I remember I had it on my 21 Ranger and it freaked me out. Didn't know I had it and thought my truck died at a light. But I remember looking it up and it does something with electricity to pause the engine. It doesent completely kill it. That's why the AC still stays cool when the engine stops at a light.
Does anyone figure in the cost of a new starter and battery on the real savings. As we all know there is only so many starts in a starter. I'm sure if you add in repair cost its better to keep this feature off. Yes it save gas but the gas is a very small savings compared to a starter installed.
stater alternator battery wear and tear on the motor I thought a car uses more gas starting
than is saved by the stopping the
8 sec s of idling before it automatically restarts
I can’t remember the cost but I know my wife’s car needed the secondary battery for the start stop replaced… and if you make a lot of short trips you may not charge that battery enough.
I can understand using the start stop system in a car that has an integrated electric motor in the drivetrain like a hybrid. My worry is the other systems Bendix starter engages and disengages the flywheel it would wear out prematurely. One other thing, the proper tire pressure for your automobile is not on the tire, it’s all the sticker in the door frame. The pressure on the tire is the maximum pressure allowed for that tire.
What you save in gas you lose in having the starters replaced and they say the worst wear on an engine is the start up
@@tommywieringo6640the worst wear is start up when the oil is completely at the bottom, this is not the case for a brief stop
Commenting before watching but think if it is longer than 30 seconds and doing more than 6 stops a trip it may be helpful but I'd think that it'd be harder on the battery and starter
Wife’s BMW has this feature, I turn it off always. It’s horrible when I come to a stop sign it shuts down just as I step on gas to continue. The money you save on gas save it for your replacement starter!
It's been a year since your comment. Can you tell start stop haters how many starters you changed?
I'm getting 38.7 MPG in my 2022 Civic LX. I'm using the stop/start feature because some of our traffic lights can cause idle times of 2 minutes and even 2.5 minutes! I also use ECO mode and although I'm not a hyper-miler I do carefully watch the traffic lights ahead and never race up to them.
2 liter engine uses 0.1 gal per hour idling. 2 min is 0.003 gal. YOU FIGURE IT OUT.
So it’ll take years and years and years and years to see any appreciable “savings”. What’s the point; turn it off. The fuel used when people floor it from a stop negates any savings from the auto stop/start anyway
At the moment, you see any cheap saving.. it's time to buy a new costly battery
My battery lasted only 2 years with this stupid feature. Worst things is the car would not start at the traffic light after it has shut off the engine.
We turn it off every start. Honda conveniently put the disable button adjacent to the start button.
The problem for me is stop signs. We have more stop signs than traffic lights, and having the car turn off only to immediately start back up 2 seconds later is just absurd. It makes sense in something like a Prius where the electric motor launches the car anyway. But shutting down a V6 just to power it right back up 2 seconds later doesn't have any value.
Fairly certain it was developed just to game the system during EPA city mileage testing. The city portion of testing includes stretches on the dyno where the car is idled. Well, yeah, if it's off that whole time, it's going to report a gas savings. But that isn't realistic, it's just gaming the system.
To each their own. But for us, it gets a thumbs down.
too bad the car companies didn't program the start/stop button the other way around, IF you want it to work then press the button to turn it on. Otherwise you would not have to deal with it every time you got in the car
Yeah no, I desperately wish thst i had auto stop start on my car, I live in a city and the constant idling wastes a tonnnnn of my fuel
@@juliet4093 The Honda manual specifically states that if you're stopping X amount of times per hour to disable it. I forget what X is, but it wasn't much. 10?
The auto engine shutoff "feature" has nothing to do with true fuel savings and everything to do with EPA ratings. It's just a manufacturer tactic to get heavier vehicles into production without sanctions, bans, etc. One look at driver behavior on any road or highway will tell you, actual drivers could care less about fuel efficiency.
I would like to see someone test piston ring and cylinder wear after 100000 miles on two of the same engines. One with it on and the other one off....?
You may want to advise people to inflate their tires according to the sticker on the door… not the max on the tires. It was my understanding the door sticker is more accurate (advised this by a Tire manufacturer rep). I’m sure there are exceptions.
You just did LOL
@@everymandriver you think this is a joke? tires can pop if you just inflate them. I did it when I was a teen so i would get a stiffer ride, and in one hard corner it actually popped.
Awesome video! Thanks for ALL your knowledge! In 2019 I bought my first vehicle ever can have no clue what I was doing or looking for except all wheel drive and big enough for my growing family and paid 16k in full for a '10 rouge 🤕 ripped off!... Long story short the dealership closed down for good during covid and I now cannot even register it or get a hold of anyone who knows how to fix this issue DMV had no resolution other than trying to get ahold of the dealership owner. Leading to needing getting a new car and your videos are my premier stop for knowledge until I'm ready to pick one that you recommend!
Penny wise. Dollar foolish. Saving a tiny amount of fuel isn't worth the wear and tear and shortened engine life caused by constant stop/start cycles.
It's main purpose was to reduce emissions period !
I agree because each time Im at a stop light it takes about 2 sec to turn back on and I honestly feel like it turning off and is actually using more fuel. Constantly turning off/on seems pointless. Im going to turn it OFF.
Does it affect the car battery? It draw quite a lot of juice to start and stop the engine.... My car died twice.....
I love it when the cars in front at a red light have stop/start. then whilst waiting for the green light, I'm not breathing in their exhaust fumes through my cabin ventilation system. Stop/start reduces toxic (NOX SOX.) emissions when stopped. and I'm not polluting the air for the car behind as well.
Think about it from an ENGINEERING Point of View.
Your Engine is meant for so many STOP/START cycles. I believe thats around 100 000 or so.
I read that they beefed up some of the internals to compensate for the extra cycles, to around 300 000.
If true, next time you are out with your AUTO Stop/Start, count how many times yours turns OFF and ON.
I think you will find that it's more than 3x (100 000 x 3 = 300 000).
So ask yourself what about the other parts that take a lot of wear and tear on this type of driving?
STARTER? BATTERY? FUEL PUMP? and I am sure other parts as well.
I think that any money you save, again from what I have been reading, around 3% REAL WORLD consumption.
So, if the average is 13 500 miles per year driven, then 3% savings = roughly 405 miles "saved" or at 25.4 mpg (2021 epa standard) would = 15.94 Gallons "Saved" at say $4 per gallon = $63.78 "saved" over the year.
My Question is this, if your Fuel Pump, Battery(s), Starter wears out prematurely form the EXCESSIVE Stop/Start cycles, what does that cost?
Let's say it takes 10 yrs for that to happen. You have "saved" a minimum of $637.80. Battery might only cost your a Couple of Hundred and a Hundred to install (Roughly), but what of the other parts? Say a Starter? Ranges from minimum $500 to more than $1500. Fuel Pump?
What happens if these parts go "early" from the excessive extra cycles? No one is sure of the long term results yet as its still a relatively NEW technology that is still being perfected.
Something to think about.
My 2002 Prius starts and stops all the time. It has no starter, alternator, clutch, or shifting. The 300V battery spools the engine up in the blink of an eye. The engine itself is not built any differently to handle continuously starting and stopping, it's an Echo engine with different valve timing. There are Prii out there with 300,000 mi with no engine issues.
I have a Pacifica and I absolutely hate start stop. But you can disable it when the little aux battery that runs it wears out...just don’t replace it. Then your car becomes normal and not an aggravation.
As a mechanic I see this all the time. The auto starters generally run about twice as much as the regular starter and generally go out two to three times as often. So by the time you factor in the difference and replacing the starter multiple times would the difference in fuel outweigh that? I don't know exactly how much fuel it saves but let's say the difference in replacing the starter and extra time plus having to pay twice as much for the starter would be about $700 every 8 years. So if it's going to save you $100 in fuel a year then the auto start might save you money. If it's going to save you less it's probably not saving you any money overall.
For auto stop and start. Besides starter and battery what about the. Wear and tear on motor bcz the start is hard on the engine too isn't it.
I found with my Toyota prius hybrid over twenty years, the main drawback bing the need for expensive synthetic oil to prevent wear caused by letting the oil pressure raise and fall in all temperature conditions.
then compare the savings on fuel against replacing the starter before its time because of the constant starting of the engine. Then the premature wear on mechanical parts that requires engine oil to stay healthy, those parts not being fulling coated with oil at every restart. I just turn the start/stop feature off every time I get in the car. If I know I'll be sitting for several minutes at the railroad crossing or any other lengthy wait I'll turn the engine off, but waiting at the intersection on a red light? No
Not only the starter. But the battery is also a costly one to support so many engine start... and it's not a common battery... and that add another huge cost that gas saving won't compensate!!
What about the wear and tear on the starter how much to start and stop shorting a life of the starter. I think Ram has the best idea with the belt start doesn't affect the actual car starter.
Great video! I have a 2017 Accord, which was one of the last Accords with the V6 option. Mine has the V6 engine and it has the auto cylinder disengagement when you are cruising. It is an automatic system and there isn't even an indicator when it does it, but even when I am cruising at higher speeds, if I keep the cruise control on (or even keep a steady foot), I have noticed that I usually do better mileage wise. I have the 1st Gen Ridgeline as well with the V6, but it does not have that system. I know the current generation has it, so I wonder if 2nd Gen Ridgeline owners who have owned the 1st Gen model notice the difference in mileage they get from their usual commutes?
Lastly, I have a cousin who I think is more in the mindset of the idling at stops as a good thing, as he always puts his car (it's an automatic) in neutral when he is at a stop sign or signal light. I have told him in the past that it is not good to do that, especially with modern cars that have a "brain" that are adjusting and adapting to the different driving habits that occur at any given moment, but he thinks he is saving gas, or who knows. Even though I told him that the vehicle is still on, so even when idling, it is still consuming gas in the still running engine, he continues to do it. I told him to especially be careful if he does this on any inclines or declines on the roadways. Oh well, I guess we all have different driving habits and quirks that are different.
Start stop just destroys alternators and starters afaik
What's worse, spending a bit more in gas or putting more wear and tear on your engine?
The real question is does it save gas when it works? Mine on my jeep always says that it's not ready. I went to dealer so many times I gave up on it working
I think the bigger question would be is , does frequent start and stop impact components in your vehicle related to this operation and if it does then what would the cost to repair components be to the related cost of fuel saved over time ? I know there would be a variable depending on how you drive.
I was wondering about this. Having a new 2023 crv stop idle i was worried it sucks more gas thank you
"These systems can save money on... money"? Huhh, what?
it’s a feature not a gas saving solution lol
Most modern cars have auto stop start. They also have a switch to turn the feature off. Auto stop start usually does not use your starter. Because of direct fuel injection, it uses a compression start. The engine stops with one cylinder near the top of it compression stroke right before fuel has been injected. When you take your foot off the brakes, fuel is injected and the spark plug fires starting the engine. Here’s the downsides. Everytime your engine shuts down in gets heat soak which causes carbon deposits. As fuel is no longer port injected, there is no fuel to clean the back of the intake values. Carbon build up on intake valves reduces engine performance and efficiency. Every time the an engine starts it puts strain on the value train specifically the timing chain (belt) and tensioners. But it gets worse. Many modern engines use turbo chargers which spin at very high speeds. The bearing it lubricated and cooled with engine oil. The harder you push the engine the more heat is generated in the turbo bearing. If you turn the engine off hard operation (rapid starts etc) the oil in the turbo bearing solidifies (this is called coking the bearing). Now imagine this happening 50 times every time you drive the car. If😊 you want to save your engine, turn off the auto stop start button when ever you drive your car.
A unnecessary gimmick to extort more money in modern new cheap cars made out of plastic .😁😁😁😁😁
What about the fact that stop / start requires a special, more expensive battery? Which needs to be replaced every 3-4 years..
Ok why is it talking about a bad fuel gauge thats not the point of the video
How much idling time does buying a new starter due to over use from stop n start at every light.?
And cold starts are he'll on a engine in cold climates your stabbing your engine in the tail pipe at every light
I never use mine.
So… TL:DW if the car idles for more than 7 seconds, it’s worth it… if the car idles for less than 7 seconds, it’s not worth it…
Good video, I’ll be paying more attention to this than I actually wanted to now, lol!
I'd like to know how much it cost the consumer after the government mandated start stop systems. R&D to figure out how to make it work, actual cost for programing, material costs etc. What is the true cost per vehicle to implement start stop & how long will it take to recover that cost?
Good point - I appreciate the feedback. If you visit quotes.everymandriver.com you can see the best deals/prices on new cars/trucks in your zip code! It’s a free search engine and it’s Everyman Driver Approved!
Turn it off 👍🏽
Did you watch the first 4 minutes? LOL
@@everymandriver yeah it saves gas but to me I think it’s not perfected just yet .
@@everymandriver Yeah, but my wife has it on her Hyundai Kona and hates the slight hesitation caused by the engine restarting when trying to pull out into traffic. Also, could this be a safety issue if the engine for some reason doesn't stay restarted (stalls) and leaves you halfway into traffic?
@@2008guelo perfected? The science says it works.
@@everymandriver you’re right the science says it works it does save gas, it’s just I drove numerous cars and most of the start stop felt terrible, hesitation etc. and on some I couldn’t even tell the car restarted. Great video always love your content.
How much a vehicle can cost for having such a feature? Can gas savings compensate for the cost of such a vehicle?... How costly will it be if you have to pay for any troubleshooting if you have any issue with it?
And this last one, those vehicles require a special battery... and that will add a lot of $$$.... so what is the real benefit to the owner ???
lol ... start stop was ONLY created to save gas on paper. It only works for the manufacturers because of the way the EPA CALCUATES milage. It is NOT a fuel saving feature - it was only implemented so that the OEMs could hit CAFE (corporate average fuel economy) targets arbitrarily established by the government. Starting your car actually uses more fuel then just letting it idle. There most certainly is more wear and tear on components, namely at least your starter. Not a "feature. I disabled mine when my car was new.
Agreed! But Hey congratulations you saved $17 on gas but here's a $1,000 repair bill
Ask that scientist, what charges the battery when the car idles, vs what charges the batteries when the engine stops. Remember that if the car or truck has large batteries to power up the starter(which is heavy and requires lots of amps to start the engine) and power up the computers, navigation, and any new citizen monitoring and the proposed remote “kill switches”.
Our SUV has dual batteries and we started getting the “low battery” alerts on both the Main Battery and the key fob batteries.
I have a Camry Hybrid and if it’s just a quick stop 🛑 probably not much of a difference. At times if your leaving it for a minute or more I am going to see the difference. In winter ❄️ running my heat or summertime running 🏃♀️ my A/C I will see a huge drop in my fuel ⛽️ economy because the battery 🔋 drains quickly making the engine come on draining fuel ⛽️ while idling.
Just seeing my engine on a cold 🥶 morning warming up 🆙 you can see the amount of fuel ⛽️ being used to get my engine up to temperature 🤒. Fuel ⛽️ economy can be average 38 mpg down to 28 mpg on a cold 🥶 winter ❄️ day.
Excessive idling my fuel ⛽️economy drops ☔️ fast 💨. When not idling life is great 😊.
Hybrids do not have a starter, alternator or belts. So, the stop ✋ start feature on my car 🚘 doesn’t hurt 😢 anything.
My Prius has a belt to run the water pump and the AC compressor.
0:46 this feature “can” save….rather it should have been “this technology WILL save…”
Ho Dave,
Thanks for sharing.
How does running car out of fuel over heat the engine 4:08
?!!
I would say yes it does. Buy. And a big but. What you save in fuel it will never cover the cost of say. New battery. Maybe a starter. Not forgetting the starter ring. There is more wear and tear on starting the car.
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Almost every argument against stop/start has been addressed by manufacturers.
"It'll wear out my starter and battery faster." - Car makers are putting more robust and better built starters and deep cycle batteries into modern cars to combat the extra wear on these components.
"The engine wears out every time it's started." Only when it's cold, and the wear is not that much, also the stop/start is designed to not activate until the engine is warmed up. Wear upon starting a warm engine is so minimal it's barely measurable. Oil takes at least 5 minutes to drain back into the oil pan. How many engines have been through thousands of cold starts in their lifetimes and are north of 150,000 miles, still running?
"I'll burn up in the summer and freeze in the winter when the engine stops at a light." - Systems are designed to either re-start automatically or not shut down when the climate control (a/c or heat) is running or at high fan speed.
"What if the battery dies?" - The system monitors the battery charge at all times and will not cycle the stop/start if the battery drops below the charge needed to restart. It will also restart immediately if the voltage begins to get too low.
"What if I'm turning or making a u-turn?" Most (not all) cars with the system are designed to not shut down if the steering wheel is turned when stopped.
My 2002 Prius has an electric coolant pump to keep heat going in the winter. When running the A/C, there is a "cold-storage" evaporator that keeps cold blowing with the engine off, since the compressor is NOT electric. Regardless, the engine won't stop if the cabin isn't near the set temperature, or the engine isn't warmed up.
Old school. No stop start. Next new car has the kill switch.
That “Kill” switch may be inside information. A better name would be “the stop to be robbed” feature. Are they betting your life that a device will not be designed to make it easy to stop a victim at the best possible time to rob or carjack them? Remember that “lane departure detection feature” that came out about ten years ago? Imagine driving down the Interstate and the cars in front of you collided, then you attempt to apply your brakes, and find you can’t divert your vehicle away from the impact, because the “lane departure mechanism will not allow or it resists your efforts to avoid the vehicle that lost control and moved into your path.
Most LDW/LKA systems will intentionally disable themselves during hard braking or abrupt steering, because they know such a situation is possible. My grandpa's Acura RDX will disable lane keeping assist if the steering wheel is turned quickly, such as to avoid an object on the road.
This feature is a gimmick. In cold climate it wears down the starter and drains battery. In warm climate it's worse; coolant stops circulating, engine oil stops circulating and cooks in the turbo charger (if there's one), as well as starter motor. And, starting up uses more petrol.
Better keep that fukin clutch pressed
This guy is so condescending.He acts like Science is absolute and never can be wrong or questioned.
Total fiasco in traffic jam longdistance with longstanding with red lights OK!
What I have seen is a lot of these savings are calculated by removing the time the car would be ON vs the time it will be OFF. That's not the point. Starting up the car takes fuel and going getting up from Zero rpms is not free energy.
simple test. Go 1 mile. Turn the car on and off every 100 ft. Then do it without it and just stop every 100 ft. See which saves you more gas.
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I can't tell you how many times my engine turns off and immediately turns on again just because I inched forward a little bit. Cars don't just come to a dead stop. They stop, then traffic settles. You inch up to close the gap and engine turns back on. Totally useless feature. It doesn't save me any gas whatsoever.
If I wanted to save a little bit of gas by turning my engine off, then I'd turn my engine off. I should have the choice. Some things are more important than "saving gas".
But, did carmakers 'beef up' their starter motors, in order to correctly accommodate this fuel saving feature, in order to engineer a 'correct' solution to added strains on the starter motor? I doubt it, I bet they are still using the same old tired starter motor engineering from 40 years ago!
They said they started using "heavy duty" starters, hopefully ! Stop / start was implemented to reduce emissions mainly, secondly, to increase mpg's
Really* not "realy"
the title says Start Stop Feature Saving Gas, but that is not what most of the video is about. Of course it saves gas, the question is how much. I figured out I would save about 2 gal per year. Worth it? NO.
Ok
2 liter engine uses 0.1 gal per hour idling. 2 min is 0.003 gal. YOU FIGURE IT OUT.
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@@everymandriver really? a sales reply? Is that what this forum is for?
1. I would not want a new anything. If I can't fix it, I don't want it. Example: Body modules that need to be programmed if replaced, really?, no thank you.
2. No normal used places have 1990s early 2000s stuff. After that is when all the really bizarre complexity and cheapening happened. In my zip code? Why would I limit my search area so drastically?
I'm not raving about it I assure you
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Start up wares the motor out faster!.Start - stop is BS!. Just cut it out with any you can.
I have a 2002 Prius with 135,000 miles. It's probably idle-stopped 200,000 times, and still runs great.
The start stop système is just to please the green religion.
You forgot, Earth is flat.
Thanks, Karen.
I hate it.
So you basically took another dude's video and talked a bunch of nonsense over it?
Thanks Karen