Originally Posted By: Rand
Originally Posted By: oil_film_movies
Yes, AP is supposed to use better, newer, anti-oxidants than any previous formula. Yes use AP.
But 0w20 EP supposedly has a good % of PAO...I cant find anything about AP.. Honestly I change the oil every 6months or upto 10000miles for warranty anyway.so if you arent going to run it 15000 or more miles is it still better?
Use the best oil you can afford. Whatever your oil change interval (OCI), the better oil will leave cleaner pistons at the end of any length OCI, although its true to some extent there may not be
much difference if you dump the oil before it begins to oxidize heavily.
Some diff, maybe not much, for shorter OCI's. ....
M1 EP & AP 0w20 have the same ~65% PAO, but the products are distinguished by other ingredients, so the better one is AP, according to Exxon-Mobil.
https://www.exxonmobil.com/sds is where they all are. (1-DECENE, HOMOPOLYMER HYDROGENATED is PAO, by the way.)
One other clue M1 AP could be a better formula than EP is that PQIA found the 5w30 flavor of AP had a very low 8.5% NOACK, beat only by the PAO/ester expensive Ravenol DXG 5w30 dexos1 Gen2 stuff at 6%.