I’ll post the results of M1 FS 0w40 going into my son’s new 2012 F350 6.2L gas engine.
He bought the truck with 224,000 kms two weeks ago. The OLM read 92%, the oil was clean and on the full mark.
The oil fill cap is 5w20 and that’s what the previous owner used. 2016 and newer have a 5w30 oil...