OIL RATINGS

[87spools]

might help out some people....especially if you run a turbo!

[darkdan]

Too bad the ONE spec that matters most for turbo/supercharged engines isn't listed. That would be HTHS.

The second most important (IMO) would be VI followed by flash point.

That's obviously when comparing oils of the same viscosity.

[RayK]

I use Mobil 1 5w-30 in mine and it still looks good after running it on road courses on 100 degree days. Change it every 3k regardless.

[bluchev]

i like the quaker state full synthetic--but im switching to synthetic amsoil

[289Notch]

Seems like Amsoil and Mobile1 are the only good choices.

[RayK]

Seems like Amsoil and Mobile1 are the only good choices.

IMO, most synthetics would be OK for supercharged engines. Don't know about turbo's.

[orange88]

i use amsoil severe duty, so im sure im fine

[darkdan]

Seems like Amsoil and Mobile1 are the only good choices.

That's because AMSOIL and Mobil1 (along with RP and RL) are the only REAL synthetics.

http://www.caranddriver.com/article.asp?section_id=27&article_id=3631&page_number=1

That's why I've been using AMSOIL and selling it for 6 years now. It's a good product.