AMSOIL vs Royal Purple

[TheSilkySmooth]

Originally Posted by Kaotic Lazagna

Mobil 1 has changed their formula, which is why a bunch of people stopped using them. Nonetheless, it is still synthetic, which is better than dino-oil.

No it is not MAybe only M1-EP and there is no confirmation on this. AND you DO NOT WANT A PAO synthetic for warm climate use - it has POOR lubricating ability - just good flow. NOT the tradeoff you want. And ALL ILSAC/API SM pec oils are marginal at best. You need a AECA A3/B3. Porsche pulled M1 from factory fill as it would NOT stay in grade and SM has reduced the wear additives to save a catalytic converter for 150K miles. Wow, a blown engine and good catalytic converter in 3 years? Screw this compromise - talk about Scylla et Charybdis GOOD oils are: ELF Excellium, FUCHs,Silkolene, MOTUL 300V. NOT M1, Pennziol, Valvoline or what a joke castrol ( BP) A FAKE synthetic that started all this: Gee, it;s OK to call a "mineral oil" a synthetic - screw Jon Q Pubic - he's a dumbass anyhow.

- Sonja's bro