2 Stroke Cycle Oil Mix for Engine Longevity | Useful Tips
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- čas přidán 5. 12. 2020
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Here are some useful tips for achieving engine longevity through proper 2-stroke cycle oil mix:
Read the Manufacturer's Recommendations:
Always start by consulting your engine's manufacturer guidelines. They provide the recommended oil-to-fuel ratio specific to your engine model.
Use High-Quality Oil:
Invest in a high-quality 2-stroke oil designed for your engine type (e.g., outboard motor, chainsaw, dirt bike). Quality oil contains additives that improve lubrication and reduce carbon buildup.
Measure Accurately:
Use a graduated mixing container to measure the oil and fuel accurately. Small variations in the mixture can affect engine performance and longevity.
Pre-Mix in a Container:
Instead of mixing the oil and fuel directly in the fuel tank, pre-mix them in a separate container. This ensures a thorough and consistent mixture.
Use Fresh Fuel:
Always use fresh, clean gasoline without any contaminants. Stale or contaminated fuel can negatively impact engine performance and longevity.
Avoid Ethanol Blends:
Ethanol-blended fuels can absorb water, leading to carburetor and fuel system issues. Whenever possible, choose ethanol-free gasoline.
Store Fuel Properly:
Store gasoline in a sealed, airtight container to prevent moisture and contaminants from entering. Use a fuel stabilizer if you plan to store fuel for an extended period.
Mix for Current Conditions:
Adjust the oil-to-fuel ratio based on operating conditions. For example, if you're using the engine in a hot climate or for high-performance applications, slightly richer mixtures may be necessary.
Avoid Over-Mixing:
While a slightly richer mixture may be beneficial in some cases, avoid excessively rich mixtures, as they can lead to fouled spark plugs and excessive carbon buildup.
Regular Maintenance:
Follow a maintenance schedule that includes cleaning or replacing the air filter, checking the spark plug, and inspecting the exhaust system for carbon deposits.
Monitor Spark Plug Condition:
Spark plugs can provide insight into your engine's health. If they consistently show signs of fouling or deposits, it may be an indicator of an incorrect oil-to-fuel ratio.
Warm Up the Engine:
Allow the engine to warm up before pushing it to high RPMs. Cold starts can result in increased wear due to inadequate lubrication.
Clean the Exhaust Port:
Periodically inspect and clean the exhaust port to remove carbon buildup. A clean exhaust port promotes better airflow and prevents engine overheating.
Follow Break-In Procedures:
If you have a new engine or recently rebuilt one, follow the manufacturer's break-in procedures carefully. Proper break-in ensures components seat correctly and contribute to longer engine life.
Keep Records:
Maintain a log of your oil-to-fuel mixture ratios and maintenance activities. This can help you track engine performance and identify any issues early.
By following these tips, you can maximize the longevity and performance of your 2-stroke cycle engine while ensuring it operates smoothly and reliably. Proper maintenance and adherence to recommended fuel mixtures are key to a healthy engine.
I hope you enjoy this video and gain something from it.
Many thanks indeed
Craig Kirkman (Owner and creator of the Repair Specialist Channel and its copyrighted content)
Please take a look at my website for further information and other cool videos and products: www.therepairspecialistonline... Please check out my amazon shop. I have recommended some useful items from Amazon below. I guarantee you that these items are the sorts of things I use on a daily basis so I know they are good. I have to be careful in recommending products because I have my name and credibility at stake.
So I will only recommend good products. www.amazon.co.uk/shop/therepa...
#EngineLongevity
#TwoStrokeMaintenance
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#ProperOilMix
#FuelMixture
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#OutdoorEquipment - Auta a dopravní prostředky
Most engines designed for 50:1 will work fine at 40:1, although you will have to retune it. Thicker gas requires you to richen up both jets because thicker gas is harder to push through the jets in the carb, so you have to richen them up, slightly. I measure everything I put in the gas with a graduated measuring glass. I use 84 ml of oil in a gallon of gas. A standard one gallon mix bottle often contains about 72 ml of oil. It should hold 76 ml for a full 50:1 mix.
great tip same thing my father taught me 40 years ago when I started mowing lawns and riding dirt bikes always easier and cheaper to change a spark plug than a piston
I have also been using 40:1 in all of my 50:1 engines. Never had to rebuild any of them. Thanks.
👍
Thanks Craig for sharing your knowledge with me. Much appreciated 😊
From my experience with antique outboard motors...
Regularly clean your exhaust manifolds and ports if you run higher oil ratios. Carbon is very hard and abrasive. It can build up around your cylinder exhaust ports over the years. Enough so that one day, a chunk or 2 can break free and fall into the cylinder during cool down. Next time you start the motor, you end up with gouged cylinder walls and pistons.
Good tip for sure! I always enjoy learning from your videos, thanks and keep it up!
These are great videos. Well done.
Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍
I totally agreed with you
I' ve used your 40:1
I used Castrol 2T Oil + Shell Regular Gas.
Fantastic. Thanks. Craig
How much 2t oil should I add to 40:1
Mineral or semi synthetic oil??!
Or Sunoco best too
Great video. Thanks for that info.
Very good advice.
I use 45:1 ratio of Stihl Ultra and PNE gas.
Thank you Sir!
You are welcome! Craig
My old British Seagull outboard runs on a 10:1 ratio. Never ware out and the oil helps against corrosion.
That's fantastic to hear about your British Seagull outboard! Running on a 10:1 ratio definitely ensures ample lubrication and protection for your engine, which is fantastic for longevity. Plus, the added benefit of oil helping to combat corrosion is a smart move, especially for marine equipment exposed to the elements. It's remarkable how these old outboards seem to last forever with the right care and maintenance. Keep up the great work in taking care of your Seagull.
Craig
Wow like Merlin aviation engine Ww2.
I have an 041 and a 046 Stihl power saws and the saw shop has a Stihl 6 pack oil that you put one bottle in a 5 gal. can first. Of course when I have the gas can filled I tell them they don't half to fill it clear to the top. Just whatever is comfortable. You know not quite to the top of a 5 gallon can. Never had any trouble with the saws,,,,,,,,,,,,
Very good teaching here thanks 👍
You are very welcome. Thank you so much. Craig
Hi Sir,what ratio would be best for a 150cc vintage vespa?
If a chainsaw has a spark arrestor, wouldn't 40:1 clog it up faster than 50:1? Could soaking it in gas/petrol or carb cleaner, scrubbing with a brush to get inside as much as possible, repeating a few tines and then blowing it out with compressed air restore it enough to be worth the effort? And could the spark plug buildup be cleaned from the ceramic, surrounding metal and the gap metal to give it more life, and would gas/petrol or carb cleaner be best for that? Or is a new spark plug generally the best option? My chainsaw box and manual say 50:1, but Poulan Pro says all of their chainsaws are 40:1 on their website. So why specify 50:1 on the box and in the manual? In this case, might 45:1 be better? But can I buy 45:1 premixed E0 Premium or even 87 Regular? I've only seen 40:1 and 50:1 E0 Premium in stores. Maybe online? I'd have to check.
You say that 40:1 shouldn't make carbon buildup on the piston top, but I imagine it could, especially over time, so how often should it be checked and could it be dealt with without removing the head? They make carbon buildup cleaning additives for 4-stroke ICE engines, but do they for 2-strokes? Going for piston and cylinder longevity with 40:1 could and may well create other issues, so what are best practices for maintenance? Or is there a special synthetic oil to minimize all of this? If so, do you know of some brands and their special products like for this? In your "Two-Stroke Oils Composition - Unraveling the Mystery of - Synthetic vs. Mineral!" today, you mentioned a bunch of synthetic oil additives and their functions, so which oil has the most of them for the best overall protection, including using 40:1 instead of 50:1?
Just looking for my best options for my chainsaw. Thanks
Hey there! You've got some excellent questions about your chainsaw's maintenance and oil mixture. Let's dive into them:
Oil Mixture and Spark Arrestor: It's true that a richer mixture like 40:1 could potentially contribute to more carbon buildup, including on the spark arrestor. However, the extent of buildup might not be significantly different between 40:1 and 50:1. If you're using a high-quality oil, the difference might not be dramatic.
Cleaning the Spark Arrestor and Spark Plug: Cleaning the spark arrestor and spark plug can indeed help maintain optimal performance. Soaking them in gas or carb cleaner, scrubbing gently, and using compressed air can be effective in restoring them. If the spark plug is heavily fouled, replacing it might be the better option for consistent performance.
Oil Ratio Confusion: The difference between the recommended oil ratio on the box/manual and Poulan Pro's website could be due to changes in their recommendations over time. Stick to the recommendation on your chainsaw's box/manual, as it's specific to your model.
Alternative Oil Ratios: While 45:1 might sound like a good compromise, finding premixed fuel at that exact ratio could be challenging. Both 40:1 and 50:1 are more common.
Carbon Buildup and Maintenance: Carbon buildup on the piston is possible, but with a quality synthetic oil and proper maintenance, this can be minimized. Regular check-ups are great, and you can usually clean the piston crown without removing the pot in a lot of cases.
Cleaning Additives for 2-Strokes: Some fuel additives can help with carbon buildup in 2-stroke engines. They work by cleaning the combustion chamber and exhaust ports. Just make sure to use additives designed specifically for 2-stroke engines.
Best Practices: Using high-quality synthetic oil with proper maintenance practices can indeed extend the life of your chainsaw. Synthetic oils often come with additives that provide superior protection against carbon buildup, wear, and other issues.
Synthetic Oil Brands: Brands like Stihl HP Ultra, Echo Red Armor, Husqvarna XP+, and Amsoil Saber Professional are known for their quality and advanced formulations. They often incorporate a range of additives for comprehensive protection.
Final Thoughts: Balancing oil mixture, maintenance, and performance is a bit of a puzzle, and it's great that you're taking the time to consider these aspects. Stick with your manufacturer's recommendations, use high-quality oil, and keep up with regular maintenance. These steps will go a long way in keeping your chainsaw running smoothly and extending its lifespan.
If you're looking for more specific information on oil additives and their benefits, the product websites or manufacturer literature can often provide detailed insights. Keep up the great work in taking care of your equipment! If you ever need more advice, feel free to ask.
Have a fantastic day!
Craig
@@TheRepairSpecialist Thank you so much. I watched this video for a second time, after watching *Two-Stroke Oils Composition - Unraveling the Mystery of - Synthetic vs. Mineral!* and I noticed, this time, that you recommended Stihl synthetic as a high quality 2-cycle oil, and took note that my Husqvarna Premium E0 50:1 premix should fit that bill. I'll stay with this 50:1 premixed with an easy mind, thanks to you, unless I decide to try gas station Premium E0 with Stihl's highest quality 2-stroke synthetic, mixed 50:1. I'll compare prices and decide. 50:1 has more gas/petrol, so my chainsaw should benefit from that and not bother with 40:1, nor mixing with E0 Regular 87, even though the manual says it's OK.
For everything else, you really covered all the bases. You answered every question in detail and I really appreciate it. Thanks again, Mr. Craig. You're the best!
PS I copied your reply for future reference.
Very comprehensive video but it seems like a long way around to say : use synthetic and add just a little more than recommended.
Thanks god bless
I tell my customers the same thing for their modern equipment; mix at the next thicker oil mix. I use 32:1 in all my personal machines for the sake of simplicity/laziness. Also anything that crosses my bench gets refuelled with 32:1 for simplicity and liability. Every customer's 2 stroke leaves here fully fueled, so if they put straight gas in it it's not on me.
Same here, Motul 800 offroad in all my tools at 33:1 (metric makes it easier in this ratio than 32:1). I've seen chainsaws with 3000+ hours ran at this ratio, still original crank bearings and piston. At 50:1, I haven't seen none lasting more than 1000-1500 hours. That should say it all.
I also use a more richer mix than what the manufacturer recommends about near 40:1.
Two strokes also work on the principle of fuel evaporation to separate the oil and petrol/gasoline in the transfer chamber, and heat from the bottom of the piston and walls of the cylinder have that. So, as the oil/fuel mixture are heated by the transfer chamber heat the heavy oil separate from the lighter fuel and sticks to the cylinder wall, bearings and other moving parts. Therefore, it is important to warm up these engines gently and not gun them down with high revs on start up, especially on cold days. For ambient temperatures down to 0 celsius a warm up on low revs upto 2 minutes is all that is required.☘
Absolutely, it's great that you're aware of the importance of proper fuel mixture ratios and engine warm-up procedures for your two-stroke engine. Using a slightly richer fuel mix than recommended can provide extra lubrication and protection for your engine, especially during high-demand tasks. Additionally, your understanding of the fuel evaporation process and how it affects engine performance is spot on. Taking the time to gently warm up the engine, particularly in colder temperatures, helps ensure that the oil and fuel mixture is properly distributed throughout the engine, minimizing wear and tear on vital components. Your approach of allowing a gentle warm-up for a few minutes is definitely a smart way to ensure optimal performance and longevity of your equipment. Keep up the good work in taking care of your engine, and if you have any more questions or need further advice, feel free to ask!
Thank you for your contribution
Craig
Hi Craig, I like to know what's the difference between 2 stroke engine oil Vs 2 stroke fuel oil.
I used to do many silly things you could imagine before I watched your channel and some others.
Hi. They are both basically the same thing but in some engines the oil is mixed in with the fuel before the fuel is added to the fuel tank, and in others the oil is placed in a separate oil tank and not with the fuel. For those placed in a separate oil tank, the fuel is added to the fuel, by a special injector, before the fuel is used in the engine. So by the time the fuel reaches the engine on both these systems, it is a mix of 2 stroke oil/fuel. I hope this is what you mean by your question. Many thanks. Craig
@@TheRepairSpecialist 1:33 is good ?
thank you lots😘
You're welcome 😊
Hi there, what radio would you recommend for a 49cc 1970's Benelli scooter? Thank you!
Hi. Generally Benelli users like to use a mix of 25:1. I myself have never owned one of these scooters so I am going by some research around the internet. It does seem a popular recommended ratio though. Some say to use an oil mix 25% synthetic and 75% mineral, but, again, this is just what I have heard from others. Please take a look at this forum of people who know more about these bikes. I hope this help. Craig : www.benelliforum.com/threads/250-2c-running.11771/
Bare in mind that using too much oil in your mix will effect your carb settings, because oil takes up space in the combustion chamber, having more oil present means theres less fuel present which leans out your carb settings slightly, so if your engine is designed to run 50:1, but you decide to mix 40:1, you should richen the air/fuel mix slightly to compensate.
Absolutely. Thanks. Craig
An increase from 50:1 to 33:1 is a 1% increase in oil amount per total oil/gas mixture volume. That's the same amount of fuel/air change when air temperature changes by 3 degrees (since air gets less dense when hot, making your mixture richer, and vice versa when colder). Do you retune your carb after a few degrees of outside temperature change? Doubt it, that would mean retuning 4-5 times in a single day. Your engine should run a hair on the rich side for maximum power anyway, so there's no need to worry about retuning after oil mixture ratio change as you won't run that much leaner to feel it :P That's a myth spread by the internet and people that didn't even bother to do the math.
@@em4703 Its not a myth I've done it mate. When I used to run my moped on 50:1 I switched to 33:1 and it heat seized from running too lean because I didnt set the carb to suit, so even though I had more oil in the mixture it actually leans out the air to fuel ratio.
The effect oil has on your air to fuel ratio is far greater than the air temperature itself, but I get what your saying.
But to truely understand my theory you need to take a 2 stroke thats designed to run 50:1 then put 33:1 in it without making any carb adjustments, you will notice a difference.
@@UncalBertExcretesмне кажется ты несëшь полную чушь, у тебя что то с головой🤡
@@em4703ты правильно сказал👍👍👍🤝🤝🤝💪💪💪
Yes a little more oil. Rather more plugs than more rebuilds
How check 2t oil best
How long can I store the mixture after I mix manually the 50:1 (1 gallon gas:2.6 Oz oil)? I may be left with 1/2 gallon leftover after using it on 2 stroke leaf blower. Can I pour this into my Honda crv or should I just throw away since it’s going to snow anyways here in a month?
When you've created a 50:1 gas/oil mixture for your 2-stroke leaf blower, it's generally recommended to use it within 30 days for optimal performance. However, this is a very controversial topic as many people have claimed to have used gasoline fuel that was much older that this. On some occasions, I myself have used fuel that is many months old and it was still operating fine. However, on other occasions I have had bad/stale fuel form way before then. If you have half a gallon left over and it won't be used within that timeframe, there are a couple of options.
First of all, try a fuel stabilizer. These are relatively in-expensive and are said to keep the fuel in a fresh, stable and usable state for up to two years depending on the brand and quality. If i wasn't gong to use a stabilizer, then i would keep my fuel in a can just large enough to keep it all in. Basically add the fuel until it is up to the very top, then fit the lid tight and store in a cool, dark, dry place. This is said to limit the amount of evaporation of the combustible vapors. Adding the fuel to the top helps to keep pressure in the container and prevent fumes evaporating out of the liquid.
I hope this helps a little and please let me know how you get on with this long term.
Craig
@@TheRepairSpecialist I forgot to mention that the mixture has non oxygenated (ethanol free) gas. Should I still add fuel stabilizer? If I still need to add stabilizer are you saying I can use it on the leaf blower without any problems next year say in May 24? Lastly, can you please suggest how to winterize the leaf blower (if I need to store it in uninsulated garage) since this all new to me? BTW I live in Minnesota where it’s brutal winter every year. Appreciate the detailed reply.
I've heard about mixing 2T into diesel fuel helps a little. With a 100/1 or 200/1 mix. Any ideas 💡 🤔
I'm not so well informed about that, although it does seem an interesting topic to digress into. I might just put up a vid about this in the future. Thank you for bringing it up. Craig
Would you feel comfortable using Amsoil or Opti2 at 80:1 or ever at their advertised 100:1? Thank you sir.
No, that's silly. Look up the lawsuits that they had over this issue and how many people destroyed their equipment/bikes. Bearings like oil volume, and piston too (but can handle lower mixtures in certain scenarios). If you go a bit lean in mixture with a 32:1, you can get away with it. With 80:1 going even a tad bit lean? Scoring instantly, as there's just not enough oil in the already learn amount of fuel/oil mixture.
@@em4703
Which oil do you use? And what is your experience with brands and ratios.
Do you try to use 32:1 in trimme? And how it is your opinion compare to 40:1.
@@Milos-Stankovic I use Motul 800 off-road for a long time, never had a scored piston ever since I moved to 32:1, no matter what oil I used. But I like how well Motul 800 behaves at high temperatures, and I like the smell of it.
My milling chainsaw has 1500 work hours last I checked, piston and cylinders looks absolutely perfect, like the day I bought it and checked under the muffler. My brush cutter is also running great, no deposits, all original sparkplugs still. I also use it in a small 25cc chainsaw, again no problems.
40:1 is good too, but I went with one step more, especially with these synthetic modern oils, they burn very clean so you can go 32:1 (except Stihl HP ultra, that burns dirty at over 40:1). I don't care what EPA says, there's no smoke with using more synthetic oil, I want my tools to last, and they just don't last long at 50:1.
I know at least 6 people that had mechanical failures at 50:1 every year (professional forestry workers), but ZERO now with 32:1, same oil. They use their saws 2-3 years. They literally fall apart in all other areas except the engine, which still runs when they retire them.
@@em4703
Thank you very much for your answer.
I will use 32:1 with quality oil with JASO FD specification.
Stihl Ultra (synthetic) isn't JASO FD (as far as I know for a moment of writing), and made lot of carbon deposit.
Penzoil is best Brand (with normal price) for cars according to testing from Project Farm channel.
Shell is owner of Penzoil, and it is one of major oil company in the world.
I thank you again.
God bless
20:1 will make your engines last a lot longer and it wont foul your plugs either. I have used it for over 25 years and never had an engine go bad yet
😢I do have trimetech brush cutter is written the ratio of 30:1 but when I'm starting is smoking but later is stoping smoking is it normal or must I change the ratio
Most two strokes smoke upon start up. If it clears ok as you said then it should be ok
My 372xp calls for 50:1 and that's what I use but everyone is telling me to run 40:1 so what do you suggest for my saw?
I’ve almost got another vid out about this topic. It should be published in the next couple of days. It’s best explained there. Keep watching this space 👍
@@TheRepairSpecialist I subscribed. Thanks
Hey i have A two-stroke 49 cc engine on x one pocket bike I press the primer ball too many times how do I unflood the engine
Several pulls on the pull-start with the choke OFF and W.O.T
I suggest you buy and get higher electric recoil for between magnetic coil and spark plug. The spark is thicker and better for car but small engine always start easy. Too much volt but works. 💪.
Hello cant i make you a question
Noice!
Craig, is it safe to use a good quality injector 2-stroke oil in pre-mix? And if so, would you recommend increasing the pre-mix ratio to compensate for the 2-stroke oil being the injector type? Thank-you in advance and thank-you for the great informative videos.
Yes you can use injector 2 stroke as premix, but not premix as injector oil (premix oil isn't diluted and its usually too thick). That's all there is to it. And yes, more oil will always give more protection, especially with synthetic oils that don't seem to smoke much. The bearings love oil volume, no matter what the environmentalists say about running 50:1 or leaner.
I bought an Amazon China saw..The manufacturer is recommending 25:1...I am assuming the saw was designed by the engineers for 25:1 and that would be my baseline...Can you tell me if that's a correct assumption
Yeh. I agree with you on that 👍
Good night
Petrol is as importtant as the oil your putting in your engine : quantity
I have just bought a new Husqvarna chainsaw and put wrong ratio of oil to petrol in (way too much oil) now I can’t get it to run . I have emptied the fuel tank and put in correct mix but is it damaged because it still will not run
Clean the carb and get a new spark plug if it’s fouled
I would always prefer a little morel and smoke, rather than too little, and cause heat wear issues.
👍
Whats the difference in engine construction between 25;1 fuel mix and say 50:1 mix
It’s really the clearances between the components and the quality of them as well
I have the same chainsaw as yours and it said 25:1 ratio is that reasonable ?
Poulan said 40:1 so that is what I mix for
Ok 👍
Stihl brushcutter 21 years old. Run hard in 90 degree temps. Calls for 50 to 1. Always run 50 to 1. Never had a problem. More is not always better.
Absolutely I use very little oil for fuel mix
Is 50:1 ratio more oil than 40:1? People tell me to run 40:1 in my 372 but it calls for 50:1 and that's what I run it
@@dentondunn4346 40:1 is more oil than 50:1...if I were to run anything of mine 50:1 I would make sure it's a full synthetic 2-stroke oil & use premium gas ⛽
Sir tell me number one chansaw company which one hardwood cutting heavy machine sir please message me
In my opinion, Some of the best chainsaws are Stihl and husqvarna. 👍
For very big jobs I would go husqvarna
Sir hard work best Chainsaw machine sthil ms ,
@@TheRepairSpecialist Also Echo !
Pump Gas Matters, Super No Lead at 32:1.
What is so difficult when a little bottle of oil says mix with one gallon of gasoline
Thank you for sharing your perspective! You're absolutely right that many 2-stroke oil manufacturers provide clear instructions on their bottles regarding the proper oil-to-fuel mix ratio. Following the mix ratio specified on the bottle is of course a reliable way to ensure that you're using the correct proportion of oil to fuel for your engine. Some people, however, do prefer to use a bit stronger mix, or a bit weaker mix depending on whether or not their particular engine is smoking a lot, getting too hot etc.
I appreciate your input, and you are right, it's important for users to be aware of and adhere to the manufacturer's guidelines to maintain their engines properly.
@@TheRepairSpecialist I always run about 40:1. With a measured out small bottle I just mix it with less gas. About 0.84 gallons. No carburetor adjustment is necessary with such a small increase of oil. Plus run the machine dry, leaving modern fuel in causes a lot of problems.
100 AV gas 40÷1 no alcohol
Ok 👍
youtube has changed now, you can upload any files size and your allowed to pause in between sentences, only managed half the video, audio seemed rushed and annoying, too hyper, relax man