MPG (mileage) Test 2790 miles with Dry Cell HHO F350 Superduty 7.3 Diesel
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- čas přidán 8. 07. 2009
- Hi: I just got back from a trip to Maine. I drove 2790 miles and used about 149 gallons of diesel and got 18.62 MPG. I have never gotten anywhere near this high of a MPG before. I don't have a trip without HHO for comparison but I think that this is at least a 20-30% increase in MPG.
Index:
@1:33 MPG calculation
@3:12 Hydrogen Generator description.
The vehicle in this video is a truck that I use for work to haul heavy loads and pull heavy trailers (often in excess of 10,000lbs). While a smaller vehicle would certainly use less fuel it does not make economic sense to keep a second vehicle to use on an occasional vacation. We do have a smaller car but for this trip it was not large enough to accommodate five people, two large dogs and baggage
To the folks that claim that I am violating the Laws of Thermodynamics: The source of your confusion is that you are thinking of hydrogen as a supplemental fuel. In this case it is an additive that improves the burn of the diesel fuel. Back in 2008 I set out to disprove some of the extravagant claims made my HHO enthusiasts. So I made a hydrogen generator out of scrap and ran a series of tests. In every test I got a slight improvement in MPH when using HHO (hydrogen).
I made this video in 2008 and it is now 2013. In the configuration that the truck was in at the time I made this video the best long trip MPG this truck got was about 14.5mpg. - Věda a technologie
Your gas mileage is much better than you calculated. You actually got 23.7 MPG (versus the 18.6 that you calculated). Your math error is because you added the initial fill-up gallons (32.298 gallons). Because you end the trip with a full tank (of unused fuel), you don't add the initial fill-up. After the initial fill-up, you are mathematically starting at zero gallons in order to compensate for the final fill-up of unused fuel. Big congrats on getting 23.7 MPG!
This guy took his time to experiment with an idea that could help us around the world to produce more efficient large vehicles, and all you can do is flame? Bravo tough guy.
I have done the math in one of my other videos and you are correct that there is not much Hydrogen added to the intake air. It is amazing that there is any improvement at all. I have noticed that I only get improvements in mpg when I operate the truck in a low fuel consumption mode such as cruising on the highway. When I am carrying a heavy load or towing a trailer there is no measurable improvment.
You can inject plain water into the intake air of a diesel under certain conditions. The water is instantly turned to steam and increases the pressure in the combustion chamber. The increased pressure translates into more horse power and torque. Usually people use a water/methanol mix for the added fuel from the methanol but plain water will work. It might actually work better than HHO in most situations.
glad to see practical videos about HHO function.
Practical?
For 7.3L best way use Stan Meyer system, dry cells take a lots of amps, yes need use second alternator , but second alternator need to be modify like Stan Meyer, so you will get more voltage and hi frequency. you can get same amount HHO with 10-15 amp
19mpg at 62mph is the best my 7.3 has ever gotten on a highway trip with a bit of city driving while I am there. Thanks for the videos, looking forward to seeing your end result. 2000 F-350 ext. cab 4x4, 4.10 gears 6 spd, edge evolution tow tune and 4" straight pipe. I think most people's claimed mileage is highly exaggerated.
i got a double overdrive built for my superduty from gearvendors, and put it in my 03 7.3L and it makes my truck only turn about 1600RPM at 70 and gets around 24-26mpg
Wow!
We have a hybrid cell that produces 4L @60 amps. built like a dry cell without the exposed plate edges. also 4ea 5/16 connecting bolts and recommend #4 wire for voltage drop. We also use a PWM rated at 220amps set at 65Amps the cell can produce 4L from start to finish no matter the ambient temp. Requires a circulating pump to reduce the steam and increase the efficiency. Reduces the exhaust emissions by 70% and increases fuel economy by 25%. Best part no leaks no gaskets.
Use 24 volt super capacitors use 2 on ebay bit expesybut yea a big 4 upgrade you know grounds all that
i am new to this hho concept and i am reading every thing i can. the pos. and neg and i will try to build a hho-gen sys.thank-you for yr info..mars...will be looking for more post from u.
I have closely monitored the EGT while using HHO and I found no increase in temps while using HHO. I have recently installed a water methanol system and it does add a lot of HP and I am still monitoring the EGT. It is very easy to burn up your pistons, valves and turbo if you run more than 50% methanol.
Good video, I found the same problem with the spade connectors, I believe people have used quality ones with gold Coating, But Personal I am back to bolting the connections on...
Thom in Scotland.
A while after I made this trip I ditched the four circuit breakers in favor of a large one and I soldered the wires to the plates. When I made my second brick (see the play list "My second HHO Brick") I ran wires to all four corners. That worked well but the brick leaked like a sieve because of a gasket problem.
Exactly, good point. HHO will not really optimise a very inefficient engine. You can only hope to burn LESS gas by using HHO or to run 100% on HHO. Obviously if you burn less gas by adding HHO you will increase the MPG of gas used... in theory anyway. I reckon you would need to remap the engine and adjust the fuel injectors otherwise it is just like adding more air into the mix. ie. burning the same amount of gas.
From what admittedly little research I've done, adding a better fuel mixture is better. This also uses the electricity generated to separate the H&o2. I don't know what the generator does when the battery is full, but if it's not charging the battery it might as well add some pure O2 to the fuel mix, if nothing else. If I was still driving semi’s I would seriously consider adding this technology. Can’t wait to see smaller models for smaller engines. Chip/Sensor setting change is needed also.
Fair enough! I've just got rid of my Izusu trooper 3Ol diesel which i used for towing trailers etc. having built my house i no longer need it. but fully understand your obvious need for a large truck. Still facinated with your site, will continue to follow, wonder if the same system could be applied to my 1600 turbo D, scaled down of course, thanks& cheers Gwyn Jenkins, Monmouthshire. UK
to all, I have a 99 f350 with a banks power pack and a banks cool air intake. I kept my foot out of the pedal and drove from WPB, FL, to los angeles, ca. I avg'd 22+ mpg! I am not in a hurry! idle speed. 48 - 55 mph. my truck pulled my landscaping trailer with some tools and camping gear. I let the truck do the driving and I enjoyed the scenery.....
With the speed limits being 70-80mph in most states on Interstate those speeds are legally too slow. It actually impedes traffic and I've heard stories of people actually getting cited for it. Or sometimes told to stay off Interstate at those speeds.
good video
I am no expert, but from the experiments I have done it seems if you decrease the number of cells in the brick then add additional bricks as needed many of your problems will go away. I am collecting the stuff to do just this in my 6.2 NA diesel. Even if I only see gains like yours I'll be THRILLED. Good job!
@eyeswideopennimrod: This diesel engine is direct injected. The fuel is injected at very high pressure into the cylinder at the top of the compression stroke. The fuel is liquid when it is injected as a fine mist. The outer surface of each tiny blob of diesel fuel is heated into a gaseous state and it instantly ignites and continues to burn as the remaining liquid is turned into a gas.
It helps to heat the diesel fuel to a point but the injectors need the fuel to be liquid.
@paladain55: Hydrogen and diesel fuel (vapor) are the fuels and oxygen is the oxidizer. The liquid and solid states of mater are not flammable. Mater is only flammable in the gaseous state. In this case the diesel fuel has to be heated until it is in the gaseous state before it can combine with oxygen (burn).
Hi villenbruc: I like the idea of soldering the wire into a slot. That will increase the contact area between the wire and the stainless steel and help overcome the limited ability of the stainless to conduct electricity. Spreading out the contact area will cut down on hot spots.
Mars
I remember when you did this. I was interested in it back then. I have the same thought as you. Think water injection and HHO combined. I'm thinking about running a bigger cell and run on 120dc. And adjust amperage from inside cab ....my power source is going to be a generator running off my transmission transfer case so I only make HHO when driving... what is your thought and was it really worth it. Thanks
Mars another great vid. Remind me are you doing any MAF or EFIE or just straight?
Thanks for posting
Liked the vid. tnx for posting. Please explain what is meant by MMW I know its been ages since this vid was uploaded but stumbled upon it only now.Regards
@godoffire7 This truck has a MAP sensor but no O2 or MAF sensors. There is no way to restrict air flow through the engine. The fuel flow is controlled by the throttle position sensor (fuel petal).
Just a suggestion, Have you tried having a separate battery and even add a capacitor between the unit? this quite help me on my amperage from dropping. And yes almost forgot I had a performance alternator included along with my set up. GL
@nebulasxtv The problem was not the size of the wire but the quality of the connections. I have since replaced the 4 relays with a large single one and soldered all the wire connections. I also replaced the PVC tubing with reinforced hot water tubing and clamped it with worm screw clamps. I can now run the brick at 100amps without any problems except that the efficiency go down at higher amps.
Hi XLR8RRICK: Thanks for the comment. In my Mars Gasket series of videos I built a prototype dry cell and I made four connections on each pos plate at the corners and four connections on each neg plate in the middle of each side. My goal was to limit the variation in voltage from side to side on each plate. The brick in this video is my first drycell that I made about a year ago and as you can see all the connections are in one corner.
Mars
Great! How is cooling the fuse/breaker a good soultion? Maybe you should have greater cable area and better/soldered connection points as you mention. Can you have several connection points? Maybe diagonal, for having to deal with less resistance through the steel. Cheers
@mars1952 I suggest to install 2 fans in your circuit box, one on each side symetrically across from each other to help keep your breakers cool so you can close your junction box door like your supposed to. Remember one fan should be an intake and the other an exhaust (one pushing air in one out). Also these fans don't need to be no larger than the diamater of a 1" pvc pipe. You can find fans solar powered this size made for car windows to help keep cars cool. Let me know if this helped
If you can add an extra connection (diagonally opposite) to corner of each plate. Current will share approx equally between each connector. Halving the load on those crimp on spade connectors. Also the actual distance traversed by the current within each stainless plate is then halved further increasing your e'lyser efficiency.
nice i'm doing the hho generator and i installed to 6 cylinder car with 25 amps 12volts dc.and its work very good .
janjamil dipatuan how is it working out for you?
@electronicdawg Yes some versions of the Super Duty with the 7.3L engine can get 21MPG but the version got 13.5MPG when it was fresh out of the showroom.
Thanks for stepping in. I get tired of telling these guys the same thing over and over again. They don't watch the videos, they don't read any of the comments. But one time or other they heard of the laws of thermodynamics, they don't understand those laws but it doesn't stop them from claiming that I have violated them. Let me state right now that the virginity of the laws of thermodynamics is still intact. I have not violated them.
people are stupid like a engine is only 30% effective because of the wasted electric that wound charge a battery. The excess energy that can't charge the battery because the battery is full charged goes to the HHO generation?
@@Alec_Woldt Well, not exactly... there isn't any "wasted electricity" per se. The alternator has less mechanical resistance when fewer amps are being pulled; there is never any excess electricity produced, as energy flow is determined by the load, not the source (this is a simplification, but good enough for most things). The reason something like this _COULD_ be beneficial is because of the efficiency curve of the engine itself. Fuel is used more efficiently when the engine is doing more work (generally). So by giving the engine extra work in the form of producing electricity to power the HHO genny, which is in turn used to help fuel the engine itself, there will likely be an overall increase in fuel efficiency.
4 gauge wire and terminal lugs are standard for 60 amps. You should check to see if your relays are rated for that.
You could run an engine on neat Hydrogen and use the exhaust gases to "dope" the hydrogen to give it a burn rate similar to petroleum. H can be made to burn like any other gas in this way.
Wow. How does this work?
If I kept my 2000 7.3 (F250, supercab, 8 ft bed, 6-spd, 4x4) under 2k RPM (70'ish), I could get 18.x mpg regularly. If I drove 55-60, it was in the 19-20 range...be it, it is a manual truck.
Seeing 2 mpg, and having done a few years as a diesel performance and emissions engineer, that range in change could easily be from the difference in driving atmosphere/style.
Good video, where can I get a bubbler like the one you have
@KENNNUSA The average is 1 liter for approximately 200 Watts if you can do 1 liter with 100 watts as you suggest you have the Holy Grail of HHO production. As many have tried and failed. Some new developments are the use of Nickel and or Platinum and they report closer to 100 Watts for one liter. We have found with the PWM that the system needs to be sized for 2X the amp draw because of the pulses.
@electronicdawg I agree that I have been over driving the brick but in general the output goes up and the efficiency goes down. The best output you could hope for at 18amps would be 1.5L, that's not much.
I have 85 GMC 3/4 ton 4x4 with a 6.2L that I use around the farm. It is very easy on fuel but very under powered. I have been thinking of pulling the engine and drive train out and putting it into a surplus Blazer.
I have had some success in tests where I drove the same routes with and without HHO, The extra hydrogen seems to improve the burn of the fuel. If it did not work at all you would expect to see a decrease in mpg when you had the generator running. In multiple tests I have never has a decrease in mpg but some times there was no gain.
@spitfireknls The original idea was to switch off some of the cells in the brick when less HHO was needed. I have learned that even when I run the whole brick I am not making enough HHO. I have removed the circuit box and replaced it with a single large relay. I have soldered the connections and don't have overheating problems even when pushing the brick to 100amps. I have plans for a much larger brick.
Mars
@MrMskilll MMW means milliliters per minute per watt and is a measurement of efficiency.
@medicbr549 I think you meant amperage not voltage. I have soldered all of the connections since I made this video.
@Giugal66: When you compare the fuel mileage of two vehicles you have to consider the weight. Your Nissan Xterra weighs less that half as much as this truck. For the Xterra to be as fuel efficient per pound as this truck it would have to get about 40mpg.
good video,jus a suggestion 'could you use better quality wire ,all the best..
Add a hollow metal ball between carb and intake manifold atomizes and vaporizes gas doubles gas mileage cleans up emissions
Good video. I live in Maine. How big of a dry cell would one need to run a 2.5 liter subaru motor.
This video along with others has caught my attention. I have a forty year old truck, and was wondering if this venture would be worth my time and trouble. Where would you suggest I go to research HHO fuel cells?
Hi smokyatgroups: I connected wires to all four corners when I built my second HHO brick. (See my playlist, My Second HHO Brick with the Mars Gasket). On this brick I have soldered the wires on since I made this video. Now the don't get hot.
Mars
really nice, how do you keep your brick filled with water, is there a way to keep water constantly dripping in?
since the video have u done any improvements on the hho system?
I'm curious if you have run into any engine problems running hydrogen in the intake. I have a 7.3 and I have seriously been considering running hydrogen in the intake. Hydrogen is supposed to be good with compression ratios 17:1 to 18:1. That is okay at idle, but that is not considering turbo boost (no, I'm not jumping).
Since this is a direct injection diesel there is not "altering the timing". The fuel ignites when the diesel is injected. You could argue that the burn is a little faster but I do not think that the difference is fast enough to make any difference...I am working on water/methanol injection but that is for another video.
Hi & thanks for the video, I have the same powerstroke engine & was just thinking of trying an HHO kit. I get only 12.9mpg tops on hwy, so lots of room for improvement.
You don't mention what your initial MPG was, so we don't know what your MPG improvement was. Can you fill us in? Thanks & keep the updates coming!
The vehicle in this video is a truck that I use for work to haul heavy loads and pull heavy trailers (often in excess of 10,000lbs). While a smaller vehicle would certainly use less fuel it does not make economic sense to keep a second vehicle to use on an occasional vacation. We do have a smaller car but for this trip it was not large enough to accommodate five people, two large dogs and baggage
I considered emmersing the whole brick in used motor oil to help with cooling but what a mess! It is much easier to build a more efficient brick that does not get hot. On this brick the sulution was to solder the wires to the terminials.
This truck is a diesel and this particular diesel does not have an O2 sensor, a MAP or a MAF. There is no restriction of the air flowing into the engine. The fuel flow is controlled by the throttle position.
@electronicdawg After soldering the connections and switching to a single large solenoid (relay) I have drawn over 110AMPS without anything melting.
You mentioned your happy with the results but I'm interested in the increase in MPG using or noting the same load factors.
You are highly intelligent, just the person I have been trying to find for the idea's on how to make a system using hydrogen as the "storage" for energy.
Solar generation, Hydrogen storage, and a system that burns it away efficiently.
I am curious, could you help me with some of these concepts?
Hi higherpoweredh2o: I stand corrected in general but specifically this 7.3 diesel does not have a MAF sensor
Thanks for pointing that out, Mars
Hi water4fuelh20: I will try to respond to your comment point by point.
1) "2,000 mile trips on a daily basis" HHO generators don't work well on short trips since they have to warm up before they start to work and the output varies radically at different temps. Testing the brick on long trips removes many variables and proves the concept.
2)"cannot afford to even buy 316 plates" I used SS from the scrap yard @ $1 per pound. Continues:
man your a genious wow, you can actually round off like you said 789 and rounded that up to ...... pause..... um 790. Damn your smart. Did you graduate high school when you were 14.
Gdubya here. Check your math. You're getting 24.13 miles per gallon by my figures. You actually used only 115.5 gallons. That first fillup of 32.3 g should not be in your calc. Yeah, you used those gallons, but you paid that back when you ended your trip with a full tank. So in the real world you should not include the initial fillup. By comparison, my Dodge Cummins gets 25mpg on 4000 mile trips when I run at moderate speed. I think engine efficiency maxes in the mid 50's and wind resistance is a lot less than running at say, 70. (Cube the ratio of 70mph / 55mph and you get 1.27 ^3 = 2.06 times the energy needed.) Pulling a square front box trailer pulls my mileage down to 15-16 mpg and that says a lot about the wind resist. Enjoyed your presentation and Thanks for yur video!
By the way, many years ago, I worked with guys changing stationary diesels of 1600hp to dual fuel operation -- propane gas over diesel. You cannot allow too much gas or the high compression will fire it much too early and wreck the engine. It must always be mixed with excess incoming air to be too lean to ignite. It then fires when the diesel is injected. I believe the project was abandoned being too touchy.
The first top off is not on the list. That 32.3 was after we had been on the road for a while. Thanks for watching.
Hi D3: Luckily all fo the creeping along at idle was averaged into 4 1/4 tanks of fuel. During each slow down I could see the MPG gauge drop by one or 2 tenths.
Mars
I used distilled water saved from a dehumidifier and Sodium Hydroxide (NaOH). About three teaspoons of NaHO per gallon of water.
@OldRangeRat You are correct that the production of HHO is very inefficient. But do not think of HHO as an added fuel. All of the energy in this case comes from the diesel fuel. The HHO just increases the efficiency of the diesel burn. For HHO to save fuel it has to increase the efficiency of the burn more than enough to offset the lose caused by making it.
Look into adding John Ellis Ellis water into your setup. Also perfectly pure water no additives, bring it right close to boiling temperature, then use tungsten rods as probes and very high voltage, to where it arks, that will make lots of HHO
HI, I am a carpenter by trade. I am not a mechanic. I did rebuild an engine on my pickup many years ago. The process is to understand what needs to be done and follow the Specs on the motor I was working on. I put over 100,000 miles on that motor before selling it. With these new motors I would be lost, with all the sensors tied to the computer. I believe on the new motors there are 02 sensors in the exhaust systems, especially the diesel motors. The sensors measure the gases in the exhaust and tell the computer how much oxygen to add, or all that other complicated stuff. So I would guess if the exhaust is much cleaner with the Hydrogen, the sensor would detect this and tell the computer to do something to counter this reading and maybe defeat the clean fuel. I would think you would have to trick the sensor to not pour more fuel to the system, When it detects cleaner air. Just a thought. I agree with the No limits tech person that 18 mpg is very low with the system you are using.
How about an update? Looks like you haven't made a video on HHO since 2009? My regular diesel car is averaging 41mpg (UK gallons) and 44mpg on long trips at 70mph.
Hi Gforce1956: I am not using any electronic manipulators of any kind. As D3 points out diesels do no have Mass Air Flow sensors.
I believe that MAF and EFIE foolers increase the MPG but lower power and shorten engine life.
Mars
I have been planning to do a 2.7liter Diesel CRDI engine. Any advice for me?
Add neutral plates between the (+) & (-), increasing hydrogen gas with less amps
@partwerks Sodium Hydroxide is lye in it's purest form. Both Potassium Hydroxide and Sodium Hydroxide are strong bases (the opposite of acid) and will react with aluminum. If you have a good bubbler the HHO will be washed as it bubbles through and very little Sodium Hydroxide will make it to your engine. If you run your HHO generator hot to the point that steam is going to the engine then you might have a problem.
Mars
The source of your confusion is that you are thinking of hydrogen as a supplemental fuel. In this case it is an additive that improves the burn of the diesel fuel. Back in 2008 I set out to disprove some of the extravagant claims made my HHO enthusiasts. So I made a hydrogen generator out of scrap and ran a series of tests. In every test I got a slight improvement in MPH when using HHO (hydrogen).
@halolife360 Anything that sticks out from the surface of a vehicle increase the drag on the air as the vehicle pushes through it. Most of the fuel consumer by the vehicle is used to over come the drag caused by the air. A windmill would almost certainly be less efficient than the alternator. Although a windmill could be used to charge the batteries while the truck is parked.
How about solar panels for the juice to power the HHO unit
I Love this guy. I saw it on TV it must be true. LoL . You think Mythbusters gets $100,000 spending budget per episode. WOW.
HHO, when added to the air/fuel mixture going into the engine, causes that petroleum fuel to burn more completely and thereby releasing more of the energy of the fuel that would otherwise be wasted.
Are you making any more of those dry cells? I have a 7.3 and I live in raleigh. I just started using a 64 oz mason jar wet cell coiled wire and am probably going to add another. How much would you charge for a dry cell?
Have you looked into using fuel vapor instead of direct fuel, i don't know if it will work on a diesel, but just thought id say. Great work though :)
@partwerks i have been using NCE it is expensive but is reusable and does not turn brown. Alsoit does not corrode aluminum since radiators,some blocks,cylinder heads are made of aluminum and pot and sod will eat through it especially if you develop a leak you dont know about until it is too late. befreetech has cheaest price and shipping.
I made this video in 2008 and it is now 2013. In the configuration that the truck was in at the time I made this video the best long trip MPG this truck got was about 14.5mpg. When this truck was new it got about 13mpg on the highway when cruising at 75mph.
No problems with early ignition. As soon as the HHO is mixed into the air stream it is diluted to the point that it can not be ignited by flame, spark or compression. The diesel fuel is directly injected at just the right time and is ignited by compression. On a gasoline vehicle you could have early ignition before the intake valve is closed and belch fire into the intake manifold. If the flame makes it to the HHO injection point the HHO could be ignited and flame all the way back to the brick.
@mars1952 yep exactly. how many mpg were you getting before? getting ready to bolt up a big dry cell to my 99 ranger 4.0 v6. its get like 15mpg thats bad for such a small truck
I remember very well quake specialy the sounds of it.
Are you a nativ english speacher ?
@mars1952 its a catalyst that helps burn the fuel completely. oxygen and hydrogen help the burn. Gasoline isnt flammable as a liquid and has to be oxidized to be flammable.
I'm still confused at how complicating a thermodynamic system can improve its efficiency in this case.
HiVinnieDain424: I have posted a bunch of videos about HHO dry cells if you want to learn more. In a dry cell the plates are gasketed and the electrolyte circulates between the cell and the reservoir. In a wet cell the plates are immersed in the reservoir.
Mars
VinnieDain424 --- For your education --- a ' dry ' cell is a self contained unit where water enters unit and vapors escape " without immersing " unit in a container of water. The ' dry cell ' IS the container , no immersion needed.
@losttreasurehunt On this trip I ran the brick at 60 to 80Amps. At that amp draw the brick will put out around 4LPM give or take some.
Mars
I have a 85 M-1028 1 1/4 ton 4x4 and all i did was put in a 700r4 overdrive trans and i get 27mpg with 4:56 gears.This is a military truck with just under 38k miles.
@TAD1311 Hi: This brick is an old design and I have purposely pushed it beyond it's design limits. I have soldered the connections and they do not get hot now. I have pushed this brick to 110amps but peak MPG increase seems to be at 80amps. This truck has a big engine and the production @ 35amps is too small to make any difference (check out some of my earlier tests). The difference between NaOH and KOH is minimal. I have always used distilled water. I have newer designs. Check out my Playlists
@harteger You can see how this brick was made in one of my other videos check my channel for the playlist "My First HHO Brick". The water circulates continuously from the reservoir to the brick and back. Every 300 miles or so I have to add water to the reservoir.
What does NCE stand for that you are using and where is this befreetech that you are talking about located?
Hi hhoforvolts: Hopefully my new brick will be about 20% more efficient but I will still be using more watts. My 7.3 diesel seems to need alot more HHO so my new brick will be big enough to utilize as many watts as I can muster.
Mars
nice that ypu give some measurements. If your previous milage was
16.1 miles per gal and now 18.62 . thats a increase of 2.52 mpg and that is 13.5% better. Congrats.
Urban Jönsson yes, but if he normaly drives 65-70mph and this time he drove 55-60mph, that fuel savings is from less wind resistance.
Yes - it could be from wind - and an other thing is how much load it had on. But I think he knew that and was talking about that in the video.
I have watched many videos about hho savings - and find very little hard evidence. Most people say they experienced positive effects. But you need to fill upp tank to the brim, and reset odometer (tripmeter).
If you want even more precise measurement - it could be made with a gps that calculates every single meter you drive. And of course drive the same route and same load and same speed.
How hot is the ambient temp around the brick under normal driving? To carry 60 amps of current at 140 degrees c you will need #4 AWG wire looks like what you have is
The brick is fed by 6 gauge wires. The individual parts of the cell are fed by 12 gauge wire. Everything was fine after I soldered the 12 gauge wires to the cell parts.
@mikedrazen add another turbo down the line, smaller one though, more low end boost will increase your burn rate at the lower rpm