Originally Posted by onzedge

GC?

I have been running Redline (6 oil changes so far) and on the next one am going to try Eneos 5-30 full synthetic. It is about $6.30 per quart as opposed to $10.00 per quart for Redline.

Originally Posted by Red__Zed

GC is german castrol. Their 0W-30 mix is full synthetic, made in germany. Far superior to the other castrol oils we can buy here.

I see 200-210 cruising on the highway, with ester I saw 215+. Under harder driver is where the notable difference was-- I clipped limp mode on the dragon with Ester oil, never got within 20* of it on GC with similar driving.