Quote:
Originally Posted by Nevyn
Sounds rather similar to the folks that swear by the theory that acetone in proper quantity provides MASSIVE fuel economy + performance boost. supposedly, it lowers the surface tension of the gasoline, thus making it easier to burn as it's less likely to "droplet."
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There are similar claims with Xylene and Toluene... both of which have octane levels of race fuel. (117 and 114, respectively).
I've personally added 1 gallon of Xylol to my 87 octane fuel mixture, so by simple averaging:
87 octane x 11 gallons = 957
117 octane x 1 gallon = 117
957 +117 = 1074
1074/12 gallons = 89.5 average octane rating.
The effect was like using mid-grade gas in my car. I got no better or worse fuel mileage. I did notice that it cleaned the intake runners in the head of gook though, when I changed the intake manifold.
I never had a chance to try 2 gallons, which would have given me
87 x 10 = 870
117 x 2 = 234
1104/12 = 92 octane.
I contend without experiment that it would have done nothing, however, for fuel economy, as higher octane fuel does nothing unless you tune for it.
Test Vehicle was a 1989 Honda Civic DX, 1.5 liter, "new" engine (20-30,000 miles) average driving method (3k shift, 70-75 MPH highway@3200-3800 RPM 5th gear), average spring/summer weather, average trip length = 28 miles or so (closest store is 10, work was 35 one way, "everything" was 20 or so.)
Before anyone attempts to flame the use of explosive solvents in your fuel - Gasoline contains Xylol and Toluene already. Adding more won't screw up your engine, and is only dangerous if not handled correctly.