how many miles for the 1st oil change?

Cown3d

royal purple is possibly the worst 'full' synthetic made
its not even a full synthetic...only partial http://www.comprevac.com/products/su...ossref6_03.pdf

its flash point is absolutely terrible compare to other higher priced oils
if you drive your car hard your oil will become nearly water, trust me ive raced road courses for a couple years and used it a few times

Quote from Aaron Lail of Tru dyno spots
"I had some independant tests ran on RP, Mobile 1, and Castrol syntec.

RP was the worst and actually had microscopic metal contaminents from brand new oil! Mobile 1 and syntec came in very close to each other.

I once had a small 4cyl turbo engine running Mobile 1 that had the drain plug come out going down the road somewhere. The engine oil light came on, pulled over to check and it was completely out of oil! Put a new plug in with 4 more quarts of Mobile 1 and never had another problem. That engine is still running today! "



Redline is a good oil
But Eneos, amsoil, and motul are the best you can buy
Enoes---->the oil is polarized which adheres to metal engine components under weight transfer conditions.

AK370Z

How about Motul? Anyone have any experience with them?

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sensi09

On the 350Z, I've used primarily Motul and Mobil1, but from the oil analysis threads on my350Z, Motul is not a very good oil, well at least for the VQ.

Crash

Interesting... I didn't know about those. +1 Rep

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dad

Can you define that?

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Cown3d

define? as in specify?

dad

had microscopic metal contaminents < what are they talking about?

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Cown3d

quoted because it doesnt need to be at the bottom of the page

tvfreakazoid

I guess when I get my 370z, stick with mobile 1 synthetic or redline. How much does redline costs?

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Robert_Nash

Generally speaking, Nissan has not recommended synthetic oil (at least it didn’t in the 350…I haven’t look at my owner’s manual to see if it still says it’s not recommended). I can tell you, however, that I’ve never heard of anyone having problems because they used or didn’t use synthetic.

Personally, on a brand new car/engine, I change the oil somewhere between the first 25-50 miles (or at least as soon as I can get it done)…and then I would change it at least as often as every 3 months/3,000 miles thereafter (I do it every 1,500 miles/6 weeks for a vehicle I autocross).

I believe that if you change your oil/filter on both a frequent and regular basis, then the most of the benefit of synthetic oil goes away.

BTW...Mobil1 used to be the best but they changed their formulation a while ago and is not as good as it once was; Amsoil still uses the better formulation (not sure where RP rates in that mix).

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