wavinwayne Joined Jan 6, 2005 Messages 8,230 Location North Alabama Nov 15, 2005 #1 http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=forum;f=51
A AndyH Joined Nov 7, 2004 Messages 2,493 Location MSP 'burbs, MN Nov 15, 2005 #2 "GC" = Castrol Syntec 0W-30 that is Made in Germany. "GC" stands for German Castrol.
O otis24 Joined Oct 30, 2005 Messages 1,995 Location South Dakota Nov 16, 2005 #3 I keep seeing posts with a reference to GC. Is this a brand of oil or an SAE/API rating?