Originally Posted by
Lean Sigma
As the man said.....Oils ain't oils sol....
haha, maybe that's the problem.
I know my late model Toyota engine was extremely unhappy when the local mechanic put Valvoline in it, instead of Toyota's recommended Castrol.
Luckily no permanent damage was done, and it went back to normal when I had him replace it with Castrol.
fwiw, that mechanic has now gone out of business.