Hello everyone, I have been lurking for a while and want to thank everyone for all the great information. I have absorbed a tremendous amount of information, thanks! I recently bought some GC (well some, I bought all 8 quarts) from my local Autozone. My 2003 Saab 95 runs a lot smoother than when I had M1 0w-40. I'll run an analysis on the next change. To the point. Back to my local Autozone (austin texas) today, it is stocked *full* of GC! Manager ordered more 0W-30 and that is what they received. Anyone else experience this?