So most of you by now are rolling your eyes...I post this because the search engine on this web site is horrid and I had no luck.
I noticed that Valvoine Durablend is SM/CF and Castrol's blend is only SM. And wondered if one was turned out better UOA's over the other?
I noticed that Valvoine Durablend is SM/CF and Castrol's blend is only SM. And wondered if one was turned out better UOA's over the other?