i wouldnt mess with paint thinner, just get a gallon of the klotz octane booster for $54 and every 1oz per gallon raises it 2.5 numbers= 93 octane to 95.5, 4oz= 98octane and so on http://www.klotzlube.com/techsheet.a...7&submit2=View and unlike the paint thinner this is safe for your O2 sensors.

a gallon lasts a long time. klotz makes race fuel too. call them if you have questions: http://www.klotzlube.com/

buy it here,
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.