A Alan Joined Jul 13, 2003 Messages 1,462 Location MD Feb 23, 2005 #1 Although i'm using M1 0W40 now I like GC a lot.I would assume making it SM rated would confirm Castrol's intentions about keeping it on our shores. Have any of the Syntecs received an SM rating yet? BTW I've seen M1 0W40 SM rated.
Although i'm using M1 0W40 now I like GC a lot.I would assume making it SM rated would confirm Castrol's intentions about keeping it on our shores. Have any of the Syntecs received an SM rating yet? BTW I've seen M1 0W40 SM rated.
H haley10 Joined Dec 28, 2003 Messages 2,767 Location Tn Feb 23, 2005 #2 Castrol USA website lists all Syntecs as SM, except 0W-30 and 5W-40 grades. I would not expect these two to become SM anytime soon.
Castrol USA website lists all Syntecs as SM, except 0W-30 and 5W-40 grades. I would not expect these two to become SM anytime soon.