Mobil 1, 6k intervals, quick yes or no
 

no flaming, complaining, lectures, why or why not. Simple. Whos running full synthetic and going 5k-7k intervals.

If you are changing every 3k good for you, no opinion needed.

I am at 5300 now, oil color and level looks good, thinking of going a few more weeks to 6k

Live in Florida. Last oil change was March 5

Run a UOA on it. Guarantee it will change your mind.

yep, i only change my oil once a year since i only put about 4-5k tops per year. :)

if you're not tracking it, you're fine

btw, AK warned no more oil threads... just sayin

Although synthetic oil has slightly better shear stability than current Group II base stock oils, it doesn't have any better detergent capability. There's nothing wrong with running synthetic in your car, but going beyond Nissan's drain intervals is unwise.

This isn't meant to be an oil thread, just a quick hitter with a few posts over a few hours then he can shut it down no worries. This was a little more specific topic though so it should get handled pretty quick with limited discussion.

I change every 6 months.

I've done that with my G37 for almost 4 years now. not one problem

I do it early simply to keep my warranty....

i usually do 5k intervals on my mobil1. but 6k shouldn't hurt your car at all.

yes

i think its fine....mobil1 synthetic is what the GTR runs and its intervals were 6K miles and are now 9k Miles.. not tracked

Because if you're still on warranty, they'd use any excuse NOT to fulfill the warranty.

when should you do your first change?

Add a M1 oil filter as well and you're fine.

yup, especially Nissan.

you can go to the full mileage interval for the first change as it doesnt use any kind of "break in" oil

:iagree:

:tup:

Does the 370Z have an oil-life indicator? If so, follow that.

If not, I would happily run it 5-7K of street-use. I have about 2500 miles on my Z06's oil and the DIC is in the 80%+ range of life remaining.

I remember a long time ago a guy on the LSX forums was doing oil analysis and the TBN showed on most oils that at 9K it had life left.

However, the 370Z does run hotter than the LSX engine family.

If you really REALLY care, send Blackstone labs an oil sample and let them tell you what's going on in YOUR engine.

oil changes every 5k miles unless during a track event, we see sustained oil temps above 240 deg. Then it'll get changed w/in a week or two after the track day.

Running mobil1 0w-40 w/mobile1 oil filter and have a 34r oil cooler (see sig).

:iagree:

Yes

Personally too nervous for 6k... 3-4k is typically when I change.

No matter what oil or car I always change oil and filter between 3,000 and 3,500. It is cheap insurance to keep fresh oil in the crankcase and false economy to try to stretch out the intervals.

I freak out after 3k

Yep. 5-6K, M-1

I live in FL as well, and I usually go about 4,000 to 4,500 miles between oil changes (off the shelf synthetics). My Z is not a daily driver anymore, so I end up changing every 4 to 6 months now.

I've sent in all but one of my recent oil samples to blackstone labs. They all look great at 4k miles, especially the TBN. Blackstone's comment was:

I could go to 6k miles easily but old habits die hard, and 6 months seems like a good time to change the oil anyway. To each his own.

+1

I do it every 6k and im with TT's but i also have an oil pan spacer which adds an additional quart and only use the Mobil1's true synthetic 0w40.

ive been using ester oil since day one. my research on ester oil life says it lasts 3k miles. i go 4k just because the sh1ts expensive.

wait this was about mobile1. my bad. :inoutroflpuke:

Oh lawd

why the oh lawd? because i think the nissan engineers might be right? whatever floats your boat about the oil you use is cool with me.

Ever look at the uoa's for ester oil after 4k miles?

ohhh... yea, but im not made of money nor am i abusing my car.

If you wanna run it longer, you should use something that will hold up. The ester-- it is overpriced and doesn't hold up well-- especially if you live someplace warm.

hmmmmmmmmm got me thinking now....

The Nissan oil delivered the WORST analysis of all the tests I had done. I never go beyond 3,500 miles -- in any of my cars/trucks -- with any kind of oil and the Nissan Ester was not just a little worse -- it was a great deal worse. At 3,100 miles of moderate driving on the sample, it was severely out of spec on viscosity, among other measures. It also showed high levels of junk/contaminants.

Do Nissan engineers know something we do not? Yes, they do. They know that an ester-type oil will quiet down their noisy valve train in the VQ's and keep customers quiet about noisy engines. The oil, though, is junk. Pick any oil while blindfolded and you have a greater than 95% chance of getting an oil that is far superior to Nissan Ester.

hmmmmmmm....... so many things to ponder while i lay in bed tonight.......

damn you oil!!!!!