Is BMW/Castrol essentially the same as GC, in terms of their chemical make-up, basestocks, etc?
Base stocks aside, if I'm not mistaken, the UOAs we've seen from these BMW oils (5w-30) in the US don't appear to be as good as those from from GC (SLX). It's been a while though, so maybe I'm wrong.quote:
Originally posted by Primus:
As a rule, BMW oils are not only equal, but often are slightly better than its Castrol parent SLX or TXT oils if we consider their base stocks.