I'm about due for another oil change. Honestly, while I think the AMSOIL is good stuff, I don't know if I notice much difference. Also, while many STI's seem to burn a bit of oil between changes, mine never has.....until I tried the AMSOIL. Maybe it's just so damn slippery that more of it is lost to blow-by. Previous to the AMSOIL, I ran 3.5 quarts of Castrol EDGE Titanium 5W-30 and 1.0 quart of Lucas Oil Pure Synthetic Oil Stablizer.
I think that I may go back to my old formula, with the exception of altering the quantities: 4.0 quarts of Castrol EDGE and 0.5 quarts of Lucas Oil.
Thoughts?
[MENTION=1]IGOTASTi.COM[/MENTION], do you burn any AMSOIL between oil changes?