Originally Posted By: Coprolite
Originally Posted By: LargeCarManX2
Originally Posted By: Donald
Originally Posted By: LargeCarManX2
My Chevy OLM tells me the current fill of Pennzoil Ultra is down to 60% at 2,500 miles on this change! What are the 2012 OCI's for Ford?
The OLM does not know what oil you are using, its using various engine metrics to determine the 60%. You could have "A1 Super Oil" from Big Lots in the engine and it would say the same thing.
(That was a made up name, don't go looking for it at Big Lots).
So if I put A1 Super Oil in the same engine with 2,500 miles would it be in the same shape? Most likely NOT!
It would be in worse shape, but the OLM would still report 60%. OLM or MM are generally designed to keep an oil of the recommended specification within operational specifications between changes. If the A1 Super Oil carried that certification, it should make it in theory. Higher quality oil should make it with more room for error...
That is exactly what I was trying to point out. It you did an UOA of PU and A1 Super Oil after 2500 miles I think the PU might have a better UOA. And PU is better for your engine. But still the OLM would show 60% regardless. In fact you could fill the truck with 5 QTs of pure MMO and run it for 2500 miles and the OLM would show 60%, thats if the truck made it 2500 miles on pure MMO.