The brand offers two lines: Pro Performance conventional oil and SYN Full Synthetic oil ... heavy duty, small engine, and performance motor oils.
“The old belief that if you start an engine on one brand/type of oil that you should stay with that oil is really part of a long-standing myth,” says Mark Betner, manager of heavy-duty engine ...
Over the past 40-plus years, I have changed the oil in more engines than I can begin to count. If you're about to change the oil in your car yourself, consult the owner's manual that came with ...