Is this for real, if yes, then my life is changed forever

[mcveighr]

normal 4banger engine where i normally get around 26-28mpg useing 93 octane. with an empty car.

Why such high octane? Car turbo'd?

Most of those are common sense, I don't think I'd make a habit of turning my car on and off. Acetone thing I'd like to hear more on but not enough to try it myself.

[skife]

LOL no its not, but at 2JZ TT w/ 6speed swap is not cheap

but a LS1/2 swap with a 6 speed is probably alot cheaper.

[91Foxtrot]

My brother did this on his 97 Grand Am. He said the car ran better, but he got no more than 5% improvement. Apparently, it doesn't work as well in gas with ethanol, which just about all gas seems to have. He said that he reset his computer and it jumped up to 20% for one tank. He figured that it whacked out his emissions and the computer "fixed" it.

I don't think he bothers anymore.

[FooTemps]

I'm not one to try doing the acetone adding but I do try to limit my revs and driving habits.

A little experiment I did the other day...

86 miles from my place to my hometown:
on the way down, I limited revs to 2.5k and didn't use any unnecessary passing/throttling/etc.
Made the run in about 3.2 gallons so about 26mpg
on the way back up to my place, I threw caution to the wind and basically maintained an 80mph average without monitoring my revs. It took nearly half a gallon more. so it was closer to 20

Now if I limited myself to 2k and drove 65-70 instead of 2.5k 70-75, I would have probably cut my gas usage down even further, but I didn't want to be driving under the speed limit...

Method of measurement: Fill full tank, reset mile counter, drive, refuel, calculate mpg

[Lohman446]

Wasn't that the entire idea of dropping the speed limits to 55 in the 70's? ? It was not about safety, it was about fuel economy.

[thecavemankevin]

Well i've been trying Acetone (100% pure) for a bit now and i've notice NO difference in mileage. Oh well, only cost $1 to try so some of you may want to give it a shot.