Reading this study, you can use acetone to raise octane and obtaine the same results of a 100RON using a 89-92RON carburant plus 1:1000 or 1,5:1000 of pure acetone.
I've used for long time, on Harley XL1200 and Kawasaki ZRX1200 wihout problems. You've to bringh with you a bottle acetone-resistant and have to be careful to don't drop on your tank or the paint will melt.
Some people are afraid acetone will swell or melt rubber pipes, o-rings and rubber seals, but from when the unleaded carburant was introduced petrol company used toluene to raise octane without lead. Toluene is strong solvent and is used in unleaded carburant up to 5%.
Acetone does good result at only 1:1000/1,5:1000 10-15ml per 10 litres of carburant and it works on diesel too.
Acetone works reducing surface tension of carburant molecules resulting in better air atomization.
It gives better mileage, 2-3 more ponies and better acceleration, 20-50% more clean exhaust gases from incombusted HC, more clean combustion chamber.
The reason because petrol companies don't add acetone to carburant is due to the immediate lost of 10-20% profit due to immediate better mileage people notice, and because not all vehicles rubber pipes and seal into an engine are acetone-resistant.
Read this document for full informations.
http://peswiki.com/index.php/Directory:Acetone_as_a_Fuel_Additive
