[NYCE]

I personally go with Castrol Syntec (5w-30)or Mobil1 (5w-30)..i sometimes use 10w-30 but it feels different than 5w-30...5w-30 feels better for some reason..probably because its not as thick. Im trying out different types of oils..next type im planning to try is Royal Purple..expensive stuff but i heard it does a good job..Another weird thing is..when i use castrol syntec..i fully boost more often than with Mobil1..sounds weird right? i dont know the answer to that but thats what i see when i use these oils..

 

[skidtron89]

Use any oil that maintains it's weight no matter what temperature it gets to. Mostly this means synthetic but there are mineral oils that do the same thing. And change it often. The brand is your choice as long as it's mobil 1. Peace!

 

[RudeLude]

stick with castrol syntec...i heard alotta bad things about mobile 1..theres a post about it somewhere on here..do a search..
dan

 

[redfox]

stick with castrol syntec...i heard alotta bad things about mobile 1..theres a post about it somewhere on here..do a search..
dan

You are kidding right? Mobile 1 is one of the best. Just don't let BlackDeuceCoupe see this.

 

[skidtron89]

stick with castrol syntec...i heard alotta bad things about mobile 1..theres a post about it somewhere on here..do a search..
dan

Castrol uses a awesome additive in there oils but they buy the cheapest oil they can when they purchase oil hence that means lower quality. With more impurities and deposits in it then they put thier additive in it and sell it for more. Don't get me wrong there is actually Castrol 20w50 in my car as I type this but mobil 1 is better I just had some castrol laying around so I put it in my engine touse it so I can get rid of it or I'll waste my money. Next time Mobil 1 goes back in there. There has been lots of test on oils and Castrol always has a higher ash content then most other brands........bla bla bvla

 

[dptkfil]

REDLINE THE BEST !!!!!!!!!!!!

 

[FBP Si 2000]

Mobil 1 Syn. 5w-30

 

[Tegasaurus]

5w-30 vs 10w-30

which is better in arizona and why? hot summers and cold winters (hot = 120F cold = 40-50F)

 

[Dr Drew]

REDLINE THE BEST !!!!!!!!!!!!

Bling Bling

Lower viscosity oils are meant to flow well in extremely cold climates. 40-50 isn't not cold at all. In 120 degree days there is no way in hell i'd run 5-30 on a boosted motor. In the summer I would use 10-40 or 20-40 to maintain viscosity. Boosted motors get hella hot and you are asking for thermal breakdown with lower viscosities.

 

[brunob16]

I'm using AMSOIL 10W40 or a 20W50 race oil.

 

[Spec]

I use Royal purple and have been using it for quite a while and I love it. On top of it actually being purple it's the best oil i've used yet.

 

[bmilescrx]

Ive used castrol and mobil 1, they have both been good to me, however I do prefer mobil 1, Ive wanted to try the royal purple, Ive heard alot of good things about it, Ill probably try it next time.

 

[JDMLUDE98]

I use str8 40 on my lude...is that a bad idea..

 

[TurboSi]

I use Royal Purple. Go around the pits and see what everyone has stocked in there trailers. Many are using Royal Purple!

 

[PwrAddrPrincess]

I use Amsoil Series 2000.

 

[solid]

what about redline????? is that any good?

 

[JPowers]

Redline is arguably the best, but it's expensive. Amsoil is also good, but their extended drain intervals can't be trusted. If you REALLY want to know how good the oil you're using is, send a sample in to be analyzed before you change your oil. This is the best forum for learning about oil:

http://theoildrop.server101.com/cgi/ultimatebb.cgi

Here's the section for used oil analysis:

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=forum;f=3