Originally Posted By: Clevy
M1 0w-40
Used oil analysis to determine interval start at 5000 miles,test,follow labs instructions from there.
As stick with that oil forever so the used oil analysis is relevant big you use a different brand and grade oil you'd have to re-establish your intervals again.
That is all.
Those are two good products Mobil 1 0w40 and Rislone.
As far as the uoa, one thing to remember is if the oil company decides to tweak or reformulate the oil you plan on using forever that might have an impact on your data established from the uoa report. Just something to keep tucked away in the back of your head.-RD