amazing isnt it? this post is immortal. being the author of acetone in da gas. i never imagined this would go on for so long well i have been useing it since last september 2 ounces up to6 ounces per 10 gallons of gas and thats many many tanks in that amount of time and yes it does seem to make the engine run smmother at idle. but i have never had an increase in mpg. even in a couple of road trips rangeing from 500 to 1000 mile trips. but my fuel system and carb is still new and clean. well it's a year and1/2 old. this has been my expierence with ass a tone in da gas. oh yeah do you all like the new challenger that was at the car show??? wisht i had one