Originally Posted by RDY4WAR
Originally Posted by oil_film_movies
Originally Posted by RDY4WAR
Sorry, what is "DI?"
DI = Detergent-Inhibitor, aka, all the stuff in a motor oil that's not the Base Oil.
Gotcha. So other additives including ZDDP, MoDTC, VII polymers, etc... are competing with the detergent package. I guess this is what's meant by a "balanced formula." Thanks.
I didn't quite say it right. A motor oil is "Base Oil" + DI + VM + PPD to be more accurate. VM=ViscosityModifier, which thickens the oil when hot; & PPD is Pour Point Depressant which tries to prevent waxy crystals from forming when cold. The DI has the FM (moly, tungsten, OFM), ZDDP, detergents, boron maybe, corrosion inhibitors, dispersants, etc., the real vitamins of the mix. PAO, GroupIII, esters, etc. are in the base oil.
It looks like the above, being 100% PAO with a little ester, is what Ravenol typically does, as most Mobil1 oils mix PAO with GroupIII, and it works well. Note the low NOACK in the all-PAO/ester stuff though. The 5w30 has a very low NOACK.