Well,
Looks like I got about 7% increase on 6 oz. of acetone in 23 gallons of gas.
I ussually get about 400 mile on a tank full. My last tank full was 428 miles. Trying again and then will experiment with less oz. per tank.
What the heck. I have 150k miles on my truck. I'll try it and let you know how good it is after 400 miles (next fill up). Gas is almost $3 a gallon here.