GC?

[wavinwayne]

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=forum;f=51

 

[AndyH]

"GC" = Castrol Syntec 0W-30 that is Made in Germany. "GC" stands for German Castrol.

 

[otis24]

I keep seeing posts with a reference to GC. Is this a brand of oil or an SAE/API rating?