Originally Posted By: slc10844
I'm anal about maintenance intervals and could use the proper rated convential motor oil and not have a problem. I just like going beyond what is recommended and have a little bit of an edge against any kind of mechanical failure. The biggest concern is the 87 Ranger and the lawn equipment. They all have flat tappet camshafts and I have read the new formula oils don't protect against wear on these engines.
The flat tappet cam concern isn't really an issue. Yes zddp has been reduced however friction modifier levels increased to compensate. Today's oils are head and shoulders above what was available in 1987,so I wouldn't worry if I were you.
I'm anal about maintenance intervals and could use the proper rated convential motor oil and not have a problem. I just like going beyond what is recommended and have a little bit of an edge against any kind of mechanical failure. The biggest concern is the 87 Ranger and the lawn equipment. They all have flat tappet camshafts and I have read the new formula oils don't protect against wear on these engines.
The flat tappet cam concern isn't really an issue. Yes zddp has been reduced however friction modifier levels increased to compensate. Today's oils are head and shoulders above what was available in 1987,so I wouldn't worry if I were you.