Nissan 370Z Forum - Oil temps: 335 comparitive observation.

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- - Oil temps: 335 comparitive observation. (http://www.the370z.com/nissan-370z-general-discussions/4635-oil-temps-335-comparitive-observation.html)

Quote:

Originally Posted by 2011 Nismo#91 (Post 2827866)

How many Toyota Camrys or Honda Civics come with an oil temp gauge? These cars can and do overheat their oil when driving under severe conditions (city driving, spirited driving, etc). The only difference is they don't know they are doing it, ignorance is bliss.

Please don't start gluing computer heatsinks to the car.

In my opinion, the high oil temps don't bother me, it's the fact the car could go into limp mode due to the inability to control temps while being run hard. While the minority, this is a sports car and there will be people that track it and/or just drive it hard. That's where I feel Nissan missed the ball. I'm sure many cars run high oil temps, and the drivers have no idea, but they aren't going into limp mode otherwise you'd hear about it. They also aren't driven as hard as a 370z.

And as a side note, My 2008 Altima with the VQ35DE had an oil cooler. Same one Nissan probably threw on the 2012+ 370z

why they put an oil cooler in an altima.... because racecar!

Quote:

Originally Posted by kenchan (Post 2827970)

why they put an oil cooler in an altima.... because racecar!

350z had the same one. Why not the 370z? Because Nissan cost cutting.

Quote:

Originally Posted by b15 (Post 2827977)

350z had the same one. Why not the 370z? Because Nissan cost cutting.

you can blame the government for raping japan for the unfair yen exchange rate at the time...

Quote:

Originally Posted by kenchan (Post 2827980)

you can blame the government for raping japan for the unfair yen exchange rate at the time...

:icon17:

That and poor Nissan engineering :tup:

Quote:

Originally Posted by b15 (Post 2827982)

:icon17:

That and poor Nissan engineering :tup:

:rofl2:

you go play with your toyota's. :tup:

Quote:

Originally Posted by kenchan (Post 2827986)

:rofl2:

you go play with your toyota's. :tup:

Hey man....I've owned Nissan for the past 12 years!

But yes....yes I will :)

At least Nissan remembered to install a power steering cooler (which my Altima also had).... :tup:

Quote:

Originally Posted by juld0zer (Post 2827648)

I've read heaps about the DLC and it's relationship with ester based oils. It must be a Nissan USA thing to mandate ester oil for the earlier model 370z (up until 2010 model iirc). In Australia, you will get a wtf response from the guy at the parts counter if you asked to buy Nissan ester oil. The stuff doesnt exist here. We have no idea which company makes the genuine oils but based on the bottle design i concluded it most resembled a Shell Helix oil bottle. There doesn't seem to be much noise being made here about noisy valvetrains in cars filled with non-ester based oil, even in the 09 models - but i might be wrong and just not read much about them on the Aussie forums. The TSB that Nissan USA issued about a software update to hush the valvetrain does not exist here.

Dealers here use whatever oil is most profitable and suitable for most models. I have an unused bottle of the Aussie Nissan oil which i might send for a virgin oil analysis for curiosity's sake. I do agree that less noise and less heat would indicate less friction. Less noise could also indicate a thicker oil film acting as a cushion. Some virgin oil samples did show a high moly content in the Nissan ester oil.

It's interesting that you got worse wear using an 0w30 vs 5w30 because there's heaps of positive results from folks running Mobil 1 0w40 in their G37 and 370z so the viscosity itself probably isnt the determining factor but the unique chemistry of each brand that makes the difference. Then there's debate about Brand A 5w30 being lighter/heavier than Brand B 5w30. But just like oil every other oil debate, let's not turn this into one of those threads.

I was pretty surprised as well, but even taking normal wear into account, the 0W30 just didn't seem to fare as well as the Redline -- but all of your points are certainly well taken, and,of course, I can only speak on the results I was getting.

The ester-oil chatter suppression thing seems to be common tho'; not sure what exactly was changed in the VVEL tune for the TSB or how effective it was, but I think even later model VQ37HR's tend to be a little noisier with non-ester oil (someone else may chime in here -- maybe I'm overstating the effect).

Anyway, as to ideal 370Z engine lubing, the fate of that particular motor remains unknown; I wrecked that 370 and just stuck with Redline when I got the new one :D

Quote:

Originally Posted by juld0zer (Post 2827648)

I just did the smooth throttle table last night. The car does seem more peppy from 2000rpm upwards. i did have a bizarre issue tonight just then where i got almost zero throttle response in 1st and 2nd gear as i pulled into a parking lot. The issue didnt reappear on the drive home.

There's a couple of different versions of that map in the thread to play with, and a lot of it is personal feel, so you might want to tweak it more.

Not sure whether those maps interact with target AFR's and fuel trims, but they probably do (assuming correction on tip-in), so some of that might have been the ECU gradually adjusting to the changes you made too -- the data log should help clarify.

For anyone who wanted to see the ugly but functional use of the ARC coolfins...

http://www.the370z.com/members/jordo...40606-0000.jpg

I also have two stuck on my diff cover :tup:

highest mine has got in traffic was about 240-245 once.. usually it's about 180-200 mark. i always watch it thinking something is going to happen -_-

Jordo! Good demonstration of how the undertray does not need to be removed for an oil change! I only discovered this at my last oil change & it saves many minutes messing around with the million screws and the flappy cover.

I had the sudden severe throttle lag thing again tonight. It felt like the CVTC system was stuck in the high rpm mode so below 4000rpm there was a very flaccid response. Foot to the floor in 1st got me nowhere quick but once about 3-4k the motor came to life although not as healthily as it does normally. i had to restart the motor to remedy the problem.

Prior to changing to Nulon oil, it felt like the CVTC system was stuck in the low RPM mode so above 4k felt reeeeeally flat. Like as if a piece of wood was wedged under the pedal.

Anyway, my 25 row Setrab core has arrived and i will be putting together a custom oil cooler set up as the commercially made kits all won't fit my car due to my ram air scoops

Hey even the new z/28 gets hot. I'm not sure if it had a limp mode though. But latest road and track says "3 hard laps with air temps barely in 80s, the camaro oil temp was 300 plus, which is unacceptable in any high performance street car."

but the problem is that our cars could be considered to be in the same league yet power output tapers off at reasonably mild temperatures while the other cars are still happily pounding away, not reducing power output until later.

Quote:

Originally Posted by juld0zer (Post 2849951)

I had the sudden severe throttle lag thing again tonight. It felt like the CVTC system was stuck in the high rpm mode so below 4000rpm there was a very flaccid response. Foot to the floor in 1st got me nowhere quick but once about 3-4k the motor came to life although not as healthily as it does normally. i had to restart the motor to remedy the problem.

Hm. And VDC was off? I've only ever encountered any major lag if I floored it and the VDC was on -- this is even on OEM throttle map :confused:

i usually drive with VDC on and on both instances the VDC light was not blinking. Nor was there a loss of traction but i guess the sensation is similar but i wouldn't say it's the same because usually when VDC kills the party, the gas pedal literally stops responding.