Hey, I thought this article might interest some of you. I copied it from another site. Do you know anything about this, or tried acetone in your gas tank? Some guys were reporting improved gas mileage, some were saying the improved gas mileage came from removing gunk & tarnish, and some said that the acetone will attack rubber parts:

Subject: Acetone in Fuels (A Study of Dimethylketone or Propanone)
Author: Louis LaPointe
Date: February 11, 2005

(c) Copyright 1990-2005 Louis LaPointe All rights reserved

Significantly Improved Mileage:
This article about acetone (CH3COCH3) probably draws conclusions that Big Oil and the American Car Manufacturers and others do NOT want you to know. They suffer from unlimited corporate GREED. They want bad mileage. The worse, the better as far as they are concerned. Acetone is a vaporization additive rather than a fuel additive per se. It is successful in very tiny amounts from about one part per 4000 to one part per 500. Mileage seems to taper off while HC emissions actually are greatly reduced with too much acetone. Acetone not only improves mileage but cuts pollution and gives longer life to engines. The peak gain in mileage comes between .03 of one-percent and .20 of one-percent acetone, depending on the actual vehicle which may be running gasoline or diesel. Note .781 cc per liter or .78 parts per 1000 or one part per 1280 is the same as one ounce per 10 gallons. Acetone operates on the unburned portion of the fuel through better vaporization to improve combustion efficiency. Acetone further operates like an electron absorber. It is the ideal additive for gasoline and diesel fuel. There are no bad effects whatsoever and every good reason to use acetone in your fuel.

Try it Fred, let us know how it works!?
Just kidding!
Monday I'll call my friend at the emission tech center.
If such a thing is really working and being tested, he will know about it.
At 1 ounce per 10 gallons the dilution sounds like if it mixes and does not seperate out, that it couldn't hurt?

SD
Josh
Fred, how was your trip?
What trails?

This topic created a large number of messages on the SoCalXJ list about a month ago. Many of the guys have been trying it, and it seems to be helping. That is, it's giving them the impression it's helping. They report somewhere between zero and a few MPG better, smoother idle, etc. Some guys say the benefits diminish after a few tanks, lending support to the "clean out" theory. The "eats rubber" speculation seems to be unfounded.

They were buying bottles of pure acetone from Home Depot(?), and sharing. Make sure the storage bottle is appropriate. One guy filled up a container, and it melted all over his dash.

BTW, I could have done without that crap about "Big Oil" and "greed." (Not you, Fred. You were just quoting.) Use acetone if it works, not if you think someone's cheating you. And anyone who thinks they could run an oil company any better, give it a try. It's probably about as easy as running a web site with forums! Not easy or simple. "Just add acetone, and all our fuel problems will be solved!" <img src="/forums/images/graemlins/rolleyes.gif" alt="" />

Berkley, the "conspiracy theory" by government and big oil & gas companies was one of the common comments that turned off many posters at the other site. It apparently is a common agrument used by the writer, L. Lapointe.

Superdawg, I was hoping you would try it in your new Cherokee, and then report whether it works or not! <img src="/forums/images/graemlins/lol.gif" alt="" />
In Moab, we did poison spider, golden spike, and gold bar rim on Saturday, and then some of us did fins and things on sunday, while the main group did Pritchet Canyon. From what I heard, Pritchet has some changes/by-passes at the rock pile, rockerknocker, and yellow hill obstacles. I have attempted Prichet 4 or 5 times --- not high on my list these days. I opted for something new on Sunday. F-N-T's turned out to be scary and a lot of fun. Glad I opted for the new trail. The guys that were staying for the week did upper hellarado on Monday --- now, that is a trail I would like to try!
It was a good shakedown run for the season; the Jeep performed flawlessly at everything. I think you and I need to talk a little more about putting the Blisten's on the YJ, however. <img src="/forums/images/graemlins/smile.gif" alt="" /> It took some time getting back into the mindset of what I can do with the YJ on Moab's slickrock. The guys spotting at the crack had everyone going over at the wrong angle! Didn't really matter for me with my 37" SSR's, but some of the guys with 33" received some additional rock rash. Of all the obstacles on Saturday's ride, the last ledge out of Gold Bar Rim has always got my attention. With a good spot from a friend, I crawled right up and over it without any real problems this time! That certainly made my day! We had one CJ-5 that was having difficulty keeping the engine running. He had just installed a new filter and regulatory, and thought that the regulatory was the problem. My suggestion to check out the filter prooved correct, the fuel filter was plugged with rust. The driver thought that he got bad gas, but I suspect from our discussion about bad gas at gas stations that the guy's tank is rusted. We had to tow his CJ over all the ledges on Gold Bar Rim, and then, all the way back to slickrock campground. This made for an interesting afternoon. Good idea to carry an extra fuel filter in the boonie box.
Sunday's trail was new to me and the others that were with us. I didn't suspect much, just an easy trail, so I didn't even air-down before starting the trail. Boy, was I surprised. Technically, it is not difficult, and stock Jeeps can do this trail. It's just that there are many steep rock climbs, some near vertical --- near 90 degrees! The trail get's your attention on the northside of the main highway that crosses the trail's loop. It is amazing how grippy this slickrock sandstone truly is! Only in Moab --- if I attempted climbs like I did Sunday in Moab back here in Colorado, I probably would not do more than put my front wheels Up on the rock wall!
All in all, we had a great time even though Jim and I only stayed for two days of four wheeling. Okay, I'm ready for South Dakota! August 10 is a Wednesday, I'll probably drive up August 12, Friday and meet you there at the trailhead/campsite. Probably return Monday morning. How will that work for you?

I've been running acetone in my CJ for a while now. I believe I can tell a difference in power because I can use 5th gear again! The engine doesn't seem to labor as much on the Hwy at 60-65 in 5th. On a recent 600-mile trip I averaged 22 mpg. the highest reading I got was 23.7. This was cruising at 60 - 65; I don't care to go faster than that in the CJ. On the way home I filled up twice without adding acetone and each time the mileage dropped a little. I got 20 mpg on the last leg. I'm convinced it helps. I will keep using it and experimenting. I've been adding about 2 ounces per 10 gals. If I drove the YJ much I'd put it in there too! <img src="/forums/images/graemlins/cheers.gif" alt="" />

I worked in the fiberglass molding industry for 21 years. We sometimes used 45-65 gallons of acetone a day, cleaning tools, parts, and spray equiptment. Workers regulary clean their hands with acetone. Please remember acetone must be safely handeled. I cant remember the flash point, but I think it boils at 133 deg.F. Anyone can consult a M.S.D.S. for more info. If you use it, store it in the origional container. It will soften certain types of plastic and rubber. As far as improved gas mileage, I really dont know but I have often thought of trying it. Also remember acetone can be recycled, which could have small amounts of water or other chemicals mixed in it. I am not a chemist or a preacher of doom, just someone who wants everyone to be careful and is thankfull that I changed careers and got out of those stinky chemicals.

My only thought is that Yeah Sure EXXON does notwant to add 1 oz per 10 gallons to get you better milage...yeah sure!
So the engineers at EXXON are stupid and cannot think of that? I wonder what it is that they spend their time doing over there?
Has anyone thought of using some with one of those cold air intakes?
Seems everyone thinks that all the people that work in the gasoline industry can keep a secret.. THINK about it.
There is nothing that is not already known about gasoline. So no secrets..none!
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

"There is nothing that is not already known about gasoline. So no secrets..none!
Big JIm"

<img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />
So, BigJim.
<img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />
So . . . now, you're a petroleum chemist and in the loop with Exxon's Research and Development Team? There's so little you're not involved in! You're an amazing guy, BigJim!
You're implacable reference to . . . it just doesn't matter!

Private Gump!
Medal of Honor Gump!.....

I agree with Jim on the likelyhood (or unlikelyhood) that big oil can keep secrets.
However, folks have built water injection systems, ignition systems and engine designs that get 75 to 100 MPG and have good power, yet all I've heard about them going into production is that a oil co bought up the rights/plans and destroyed them. I know xfiles crap.

I'd like to see some real lab type testing, you know not well I tried it so it must be good crap, we heard that about revolver shackles too.

SD

Glad you had fun Fred!
The RE 3.5" is on the xj as of yesterday.
I'll be wheeling it a bit out at CORE next weekend.

Good for you SD! You be athinkn'.
Lets all for a minute or two imagine some addition to gasoline that 1/10th of an oz. would take our vehicle another mile! Now that is what is being said above.. 1/10th of an oz. is good for a mile if 1 oz. is good for 10 miles in 10 gallons..
How easily we are led astray. We all really WANT to have a magic bullet. Anything that we can put in the tank and can drive for weeks before having to put more in there..
If it were even possible don't we think that SHELL would put it in there just to get ahead of EXXON? And what if a government committee got hold of this info? Dontcha think we would spend millions of dollars with our fancypants legislators investigating till there harts were content?
Naw gasoline is what it is.. there is no cheap help for it.
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />