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Old 11-21-2009, 10:45 PM   #25 (permalink)
beaterjeep
EcoModding Lurker
 
Join Date: Nov 2009
Location: Ohio
Posts: 2

beaterjeep - '93 Jeep Grand Cherokee Laredo
90 day: 14.96 mpg (US)
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Quote:
Originally Posted by Christ View Post
Acetone evaporates almost as quickly as you pour it.* Acetone, like you get in hobby shops and the like, is also "wet". It doesn't have alot of capacity to be hygroscopic beyond what is already being held, in regards to water.

The octane level of pure Acetone (anhydrous) is ~150... adding 3oz to 10 gallons of 91 octane fuel may get you 92 octane. I'm not even going to do the math, it's such a small change.

The "stigma" of Acetone in fuel is that it's supposed to make the fuel "Easier to digest", by breaking the surface tension of the fuel, allowing it to mix and vaporize completely in the air stream. Of course, it's also completely false.

3MPG is a fairly hefty claim for a Jeep with Acetone. I'd like to see some of your test methods.

As always, welcome to EM!
The 3 mpg improvement was in an 01 Infiniti I30. My methods were not scientific nor accurate by any means but basically started the trip with straight gas...24ish mpg, acetone in next tank...26.5ish, straight gas next tank...24ish, acetone in next tank...27.2ish, and used acetone from then out maintaining in the 26-27 range. I was figuring mileage by the old fashioned miles / gallons to fill up (not topping off the tank). The Jeep saw a 1 mpg improvement, although there were other factors involved in that tank. Have you tried acetone yourself?
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