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http://www.lubedev.com/smartgas/ultra5.htm
Is there any validity to any of these?

Just curios

Little to none....

It's entertaining to read.

If (a big IF) what is described holds any truth, my Insight could get another 25-30 MPG by following all the tips. Wow!


I don't think so.

Acetone tales comes up so often, I wanted to try it. If it made any difference in my car, I couldn't measure it. Too many other variables. I can't say it's busted, but I didn't see any big jump in MPG's. I still have the almost full can of acetone in the garage.