Ive been running Rotella T6 in my e36 1997 m3 for a number of years but now have a newer 06 330i that i run Castrol 0W40 in for the LL01 certification. I'd like to run the same oil in both cars to make things easier. How do you guys think the Castrol 0w40 would do a in a e36 engine at the track? The car currently has 170k on it, has a clean engine, and sees a 2-4k highway miles a year aside from the few track days. I've looked at the VOAs and I noticed that the Castrol is a bit thinner at temp. Is that a concern?