Pentosin 0-30 or 5-40?

[rennwerkes]

I've heard good things about Pentosin's motor oils.
Anyone have advice on which weight to use on a BMW E36 M3?
TIA!

 

[gtx510]

5W40
10W60 or a good 50wt if you've got a "real" M engine

 

[rennwerkes]

Nope, I've got the "regular" M3 motor.
I guess it's 5-40!