Originally Posted by NissanHauler
Originally Posted by burla
Originally Posted by Danno
Just curious why folks here recommend oils that don't have manufacturer required certs for engines still in warranty?
Misguided is why, if you are going to run a non spec oil, mise well make it a non spec weight instead and get something out of it. 20 weights are extremely stable, hardly matters one brand to the next, but if you move to 5w30 there are incredible differences from brand to brand, and more over better film strength at the same time still using a thin oil = good idea for engine having issues like cams and lifters imo. Look for high additives oils with pao base oils is a good idea imo, also go away from the fca running 20 weight in a 390hp v8. The hemi is a dinosuar engine, it is not the modern stuff that thrives with lower weight oils, think hearty slightly heavier oils is a good strategy. That is what FCA did with the other non mds hemi's, run srt high moly 40 weight GtL base oil made in cooperation between FCA and Pennzoil. We also have guys running that in the mds engine 0w40 PUP, many guys on the board's second choice.
Looking at the Castrol Edge in 5w30, WiX filter since I cant find a Fram Ultra that's listed for my dodge lol. Am I off base with those choices
If you ask me those might be the best otc choice you can make, as they upped their moly lest check. I can't remember, it was either edge or qsud, but I think both are great choices, especially in 5w30. Do you have any uoa's?