New Acetone test.
I took my moms 85 lincoln 302 TBI car and ran it till empty (drove it to work on E when i got there idled till it died)
totally empty. then added 1 gallon of pure acetone started car drove 2 blocks and got 10 bucks of gas about 3.5 gallons so now its like 20%. and drove home.
next day my mom calls me and says what did you do to my car, i figure oh oh! , she says it runs like a new engine and flys onto the parkway like never before, this has always been a well tuned low milege car. by end of day she filled it up and she said it lost that zip it had that morning.
geee I wonder how much the Acetone boosted things with absolutley no other changes made to engine/car.