Prboy

Hey guys i was researching for how to increase your mpg other than with a tune up. And i found a lot of plp that use acetone w fuel and are getting 15-25% increase. Ill give it a shot but want to know if someone in here had done it or is currently doing it. Im getting 30-31 mpg my goal is 40+. Thx

StreetsideStig

Fuel additives for MPG increase are generally snake oil.

If you want to get up to 40, I'd suggest a low resistance air filter, overinflating your tires, and dropping weight. Plus the aforementioned tune-up.

MrCompton734

Best way to 40+ mpg is shifting. I've seen 38.6 mpg in my D16A VTEC del sol at best and at worst I got around 24 mpg. I actually track every drop of gas and mile driven. Here's why I'm posting. I used that Lucas Fuel Injector and my mpg WENT DOWN.... I used the Lucas crap the day after I hit 38.6 mpg and I haven't been able to get past 32.22 mpg since.

Former User

You MUST provide all pertinent information about your car and engine. Failure to do so may result in thread closure.

Prboy

97 civic ex automatic. D16y8. I know 5 speeds car is better for mpg but still i would liketo be at least in high 30's... Ill do some testing and will come back w the results

Former User

What gave you the idea that acetone would increase gas mileage? There's a lot of CRAP on the internet.

Prboy

http://www.pureenergysystems.com/new...00069_Acetone/


Ecomodder and a lot of other places

Former User

I could find no scientific evidence that acetone helps gas mileage, only anecdotal claims.

http://theness.com/neurologicablog/i...e-gas-mileage/

http://www.snopes.com/autos/techno/acetone.asp

http://www.fuelsaving.info/acetone.htm

If you have found any scientific evidence, please post it.

Axatax

That's what makes a good urban legend. The person doing the talking is just convincing enough that the myth seems plausible.

The Ecomodder article almost sounded good until it meandered into the oil company suppression/conspiracy stuff <- of course no evidence to support this is provided, as usual.

grumblemarc

iTrader: (4)

Yeah. Whatever.

What harm to the engine, if any, is the OP looking at? A little snippet from Snopes.com, debunking this practice says the following

likwidchz

You could check to see if the LTFT fuel trims change, that will tell you if your ecu is pulling or adding fuel while cruise.

jooky5

when you distill your own ethanol (vodka) you first get a few drops of acetone. So if you think ethanol helps your mpg then acetone should be slightly better.

Truth is both substances burn too slowly. They actually ignite going through the exhaust valves. Leading to a hotter engine (remember "winter gas"). A hotter engine will burn carbon, leading to better emissions. This is why cat converters work so well.
If you want crazy MPG build a vapor carb and use only pure gas. then dump the cat.

Blacknight117

iTrader: (1)

Or, burn your exhaust valves and start causing problems..

Prboy

Well guys i havent done the acetone yet. But i will after few more tanks. Just did tune up:
Spark plugs
Spark plug wires
High mileage 5w30 oil and filter
Fuel filter
Regular gas from shell, part of the experiment :p
Gumout to tank
Seafoam to oil, vacuum line and lil bit on tank also
Cleaned map sensor
Cleaned iacv
Double checked tps and was good
Cleaned air filter

Havent done tire pressure yet but i will tomorrow. Im trying to get better mpg without trying acetone for now.

Btw does bad alignment affect mpg?

EJ8_Man

Negatively

Also read the instructions on your seafoam bottle about adding it to the crank case. You're not suppose add it to clean oil and leave it in until the next oil change

habanerored06si

Um. Yes?

You're concerned by tire pressure but don't understand the logic of having proper alignment? I can see why you've been brain washed into the whole acetone thing.

Prboy

http://www.seafoamsales.com/tech-info-gas-engines/


Read the instruction before commenting , u can use it either way thx

Prboy

When did i say was concerned about tire pressure? Now about the alignment i meant if it does REALLY REALLY affects mpg. But thx for answer i can see ur pretty smart.

EsotericImage

iTrader: (8)

drive like grandma and youll see 40mpgs

b16a00si

I filled my tank up last may driving from columbus ohio to cleveland for my brothers wedding, I pushed the car as long as I felt safe without putting gas in it. I had 386 miles on my 00si with mods i/h/e, a/c on the whole time. I try to keep my intake filter as clean as possible and also the throttle body, other than that just regular maintenance.

Prboy

Yo ive been driving worst like a granny. It takes me like 3 minutes to hit 55 mph and 20 seconds to 20mph

Prboy

Well i think it could be cuz mine is ato. I had a 5 speed hx and i was doing 42 mpg but my stu*** a$$ traded it. Also i dont wanna put header and exhaust cuz is automatic tho and dont wanna feel ricer

grumblemarc

iTrader: (4)

Everything I've read since this thread started say there is absolutely NO science behind it. There is NO data showing that acetone will increase gas mileage.

jooky5

I think the acetone thing worked for one dude years ago because his intake and engine was filthy and the acetone cleaned it up by dissolving it... and any rubber hose or o ring

EJ8_Man

Go read it again:

As an after service additive into fresh oil, nearly fresh oil, or oil (used condition) that is NOT ready to be changed (based on mileage since last oil change), put the same amount of Sea Foam Motor Treatment into the crankcase as described above, and then regularly monitor your oil for color and clarity. Set a predetermined schedule for checking the oil condition on a mileage, timed, or event basis (like every time you add fuel, etc.) to determine when an oil service is necessary. Monitoring of the oil for color and clarity will tell you when it is time to do an oil change service.

Which basically means "go ahead and add it to new oil and waste it, because if seafoam does it's job the oil will get dirty fast, and, following the instructions, when it gets dirty, change it"

So add it to old oil, get the same cleaning affects without impacting the life of your new oil. You can do it either way sure, but do it the smart way is all I'm saying.