Acetone??
I have a thought on trucks, acetone and mileage. When gas was cheap, we never thought much about our Rangers and the relatively poor gas mileage they deliver. Since gas has shot out of sight, I can't believe the things I read in these Threads; stuff guys are doing to their vehicles, the complete rebuilding of engines to do something they were never designed to do. The hundreds if not thousands of dollars that are being spent to in the long run, accomplish very little.
Rangers were designed to operate in a specific manner with specific parts. They are not high mileage vehicles. I keep my 2000, Ranger in the best operating condition I can, i.e., new air cleaners, frequent servicing, etc. I do my best to practice the best driving techniques, stops-starts, to give me the best mileage possible.
So it comes down to the bottom line: If you want a utilitarian truck, drive your Ranger and stop complaining about the mileage. If you want 35-40 miles to a gallon and an indestructible vehicle, get a Toyota, Corolla! Unless you have a ton of money to throw at your truck, accept what is and always the truth.