Best Oil, Whats the best oil Options

[zfjohnson07]

I'm sure theres a thread somewhere, but i just figured i might as well open a new thread since theres a lot of new people on this website. So back to the question, What's the best oil to run, or is the synthetic oil better?

[BonzaiCelica]

ya its kind of a waste to use synthetic blend on 7afe and 5sfe. I mean only if you're going to race your 7afe or 5sfe(which isnt really a good idea). I use valvoline, castrol, or any high mileage over 75,000 miles synthetic blend.

[windowlicker]

ya its kind of a waste to use synthetic blend on 7afe and 5sfe. I mean only if you're going to race your 7afe or 5sfe(which isnt really a good idea). I use valvoline, castrol, or any high mileage over 75,000 miles synthetic blend.

hell even though i rallyx the hell out of my 7afe in the desert, i still use castrol gtx 5w30. the previous owner of the car used nothing but castrol gtx and when i dropped the oil pan, i was super surprised that there was NO sludge or anything in the pan with an engine that had 180,xxx miles on it at the time. the bottom end of the engine was amazingly clean, so i figure keep using the gtx. personally, i don't really see the benefit of using any high performance oil in the 7afe or even the 5sfe during normal driving. i can understand the need on the 3sgte for synthetic since there is a certain amount of oil running through the journal bearings on the turbo and higher engine temps when its pushed hard. i always used mobil 1 in the srt4 i had, and it worked very good, especially after running the canyons so hard you could see the hot side of the turbo glowing red.

oh, and yeah, once you go synthetic, there is no going back. something about seals leaking is what i've always heard.