I have been using acetone in my 83' Toyota Camry since August when my job was a 75 mile round trip at 65 mph. It has just under 200,000 miles on it. I followed the authors instructions about using different gas brands and did find a difference of two miles/gal. Esso gave the best. I then changed the brand of oil from Castrol GTX 10/40 to PetroCan Duron 10/30 heavy duty deisel and gas engine oil and started using acetone, 3 ounces for every 10 gallons. My mileage went from 37 to 42 miles/gal and the oil now stays clean with no oil consumption. When the weather started to cool down, mileage went down to 40/gal. It does work for me in my 4cyl daily driver, I haven't tried it yet on a V8 vehicle.
Brian
