ZDDP.....Zinc.....Save Yourselves

[HEI451]

Rotella, RPM Delo, Valvoline, good stuff, Pennzoil, bad, bad, bad. I am NOT a 0W-Noting kinda person, give me a nice 20W-50 or straight 30W or 40W every time. Haven't used Mobil 1, because it is a fairly strong synthetic make up, but I hear it works well in later model, induction hardened/roller cam engines.

For some of my older air and liquid cooled engines, I use O'Reilly's brands, NO problems at all. Have used CarQuest as well in the past, also NO problems.