Hey all,

FYI I've been running acetone in two vehicles (Dodge caravan V6, Merc
Sable V6) for about 9 months or so. I've noticed a few things in the
process.

Lou recommends 4 oz per 10 gallons. This amount seems to work good
for most people, and it did for me. Some people seem to get better
results running a little LESS acetone, perhaps 2-3 oz. For myself,
this is not the case in either vehicle, 4 oz per 10 gal works best.
Running MORE acetone DEGRADES fuel economy, so DO NOT USE TOO MUCH.
More is not better! Listen to Lou! He is right!

Typically I will only add 2 ounces per 10 gallons every third fill up
to help avoid overdosing. This is the only point where I differ from
Lou, he reccomends skipping every third tankful or so. I'm lucky that
I have a surprisingly accurate fuel gauge so I can easily estimate how
much gas I'm going to need, so I can get away doing this IMO.

I buy it in gallon cans at Autozone an measure it out in a graduated
long neck plastic bottle used to spray insecticide I found lying
around (you can probably get one like it in the garden department of
your local non-Wal-mart). I also bought a funnel to fill the bottle with.

I also noticed that acetone works a bit less in the winter. The MTBE
(or whatever) they add to the fuel to reduce emissions REALLY screws
up your fuel economy (in my case, 20%). Talk about a boondoggle...
Reduce emissions by 15%, but increase consumption by 20%... Net gain
in emissions to the envrionment = 5%. Your tax dollars at work.

I've also soaked fuel delivery components in 100% acetone (gaskets,
lines, fittings etc.). I even sawed a fuel injector in half to get at
the bits on the inside.

What I found is that some gasket material will swell in straight
acetone. Fuel lines and fittings do not react - period. To determine
what would happen running 1:320 acetone:gasoline, I soaked these
suspect parts in this mix (I actually used a double strength mix to be
on the safe side - 1:160). The gaskets swelled very, very slightly,
just enough to be noticable if you have good eyes. My wife didn't see it.

My final analysis is that acetone gives 90% of people out there an MPG
boost, and if you have a leaky fuel system, it may swell your gaskets
slightly and seal the leaks.

Best regards all and good luck,

Dave Narby