Poll: Which FULLy synthetic oil do you use?

[1stToyota]

Originally Posted by TheSilkySmooth

No, Ist, its the 10W-30 PAO base meat-and-potatoes product. The dealer doesnt sell amsoil anymore so I just put some Valvoline grpIII/IV Synpower 10W-30 in for the meantime. I hear the Amsoil doesnt have API SM/SL certification.
On the grpIII - I just havent had any formula work well for me YET. And I jumped on that ISO syn bandwagon with the Chevron Process when it first came out. Good luck with the P-Platinum its had really good UOAs as has V-Synpower. It's just Mobil-1 that has high iron and Cu consistently and failes to meet its API certs down the road. Funny that Mobil Clean 5000 is a good sleeper Dino oil.

Amsoil does have API certification. Like I said, it's only on their XL series, which is API on every XL grade, and XL is ACEA A1/B1, and like I also said, it's group III. I posted the link from their site where it states they went group III to keep it competitive, pricewise, so they could offer API approved oil to the market. I think I did see a blue topped 10w30, and yes, it wasn't certified, and not group III, good for 25K, guessing A4/B4.