I was wondering if M1 5w20 is a good oil and whether it can be used on a new engine with 5000 km on it?
Is it grp III? or PAO based?
Also, what is this that I hear about high Fe in M1 UOAs? Is that normal and consistent?
Is it grp III? or PAO based?
Also, what is this that I hear about high Fe in M1 UOAs? Is that normal and consistent?