Originally Posted by mrphotoman

i wouldnt mess with paint thinner, just get a gallon of the klotz octane booster for $54 and every 2oz per gallon raises it 2.5 numbers= 93 octane to 95.5, 4oz= 98octane and so on

buy it here, a gallon lasts a long time. klotz makes race fuel too. call them if you have questions: Klotz Synthetic Oil

Hi-Performance Engineering Klotz Products

Octane Booster
(Reference #KL-628)
$51.95 GALLON
($2 handling reflected in price)
11 In Stock

it is cheaper than torco, the only other REAL octane booster.