Holy crap.... Way to dig up an old dead thread lolMy 97 GT I was getting 13 MPG (leaking piston ring) used a bottle of AMS OIL P.I. got 18MPG the next tank. "mechanic in a bottle" doesnt really count for stuff like this since it doesn't "fix leaks". I've never used this specific one but who knows it might be worth the try. If your curious try it.