Leaded fuel is OK to run on no catalytic cars! Race GAS :)

[SuperDave]

Just do the math. It was 5 gallons gas to 1 gallon (114 octane) tolulene = 95.33333 octane. AVgas is 50/50 since it is only 100 octane. Xylene is 118 octane but I mixed it like Tolulene, and I think I went 4 to one on the 112 leaded race gas. Look into home made octane boosters if you want to run the xylene or tolulene. You need to add some ATF and mineral spirits. Recipes are easy to find on the net.

Thanks. BTW, the CarTalk guys wrote today about mixing different octane gas and how simple the math is. They weren't talking about anything exotic, just taking 89 and 93 to make 91.

Richard Lassiter's "How to Mix Your Own Brew"

http://www.gnttype.org/techarea/misc/octanebooster.html

How to make your own octane booster (this is the basic formula of one of the popular octane booster products). To make eight 16 ounce bottles (128 oz = 1 gal):

100 oz of toulene for octane boost

25 oz of mineral spirits (cleaning agent)

3 oz of transmission fluid (lubricating agent)

This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.