2012 Model Will Have OIl Cooler

kenchan

yah, this is another side effect im wondering about for those that dailydrive your Z's especially short distances (short as in 10miles or less one trip).

theDreamer

Add boost, helps warm up the oil quickly.

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11Thumper

I have a few questions. Not picking bones with anyone, just want to understand this a little better.

1. Didn't Nissan implement the "limp mode" because they switched to a new "green" bearing material in our engines? I thought I read it someplace and it's possible the limp mode was created as a result of that (material specifications), nothing more.

2. Manufacturing tolerances (especially these days) should be tight enough where variances should not cause engines to operate vastly different from one another. While break-in procedures can vary widely, could that really cause an alteration of the engine's ability to run at normal temperatures?

3. In the case of the owner who has owned both an '09 and '11 model. I'm curious if the '11 model is running higher oil temps because the engine is still fairly new. Has anyone experienced reduced oil temperatures after ~25k miles of usage?

Yesterday I drove from San Jose to San Francisco (about 50 miles) on the freeway in moderate temps and light traffic. My speed was set at 68mph (lots of LEOs around so used cruise control) and I was running pretty steady at 210 degrees the entire time. To me that seems fairly reasonable, however if I get on the car hard it doesn't take long to get up to 240-250 degrees. I've never pushed it over 260 degrees before.

Lug

I've read that Nissan decided to drop lead out a a tri-metal formula a few years back to go "green". As a result, the bearing started showing breakdown at sustained temps over 300 degrees and this is the reason for the 280 degree limp mode. I'll try to find the article.

Edit: problem is mentioned in this article: http://www.modified.com/tech/sccp_08...e/viewall.html

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sucasa

Update.. 10/12

Spoke to Nissan Corporate for over 40 minutes on the phone regarding the 2012 370Z and the fact it has a factory installed oil cooler. Nissan Corp. will be speaking to technical folks in USA and JP regarding possible solutions for 2009 - 2011 owners who are interested in getting a OEM NissanMotorSport or NISMO oil cooler installed by the dealer and getting it warrantied. Granted they feel the engine has fault protection mechanisms in place to not cause engine problems, however, the fact the 2012 has it as a 'default OEM cooler' part tells me Nissan realized it should have been there in the first place. I conveyed this to the Nissan rep.

Currently owners can get an oil cooler installed but no warranty will be provided warranty. Based on my conversation, the Nissan rep was helpful and understood the concern current owners can have, and will be getting back to me next week.

Will keep you posted.

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Cmike2780

I think as long as your not flogging on the engine within those 10 miles, it should be fine.

I would venture to guess it's not gonna be anywhere close to a 25 row cooler. Nissan won't do any retroactive modifications for those of us who have our Z's already, but I do hope we don't get burned for warranty work because we have one installed. If I were to install that very same Nissan branded oil cooler for example, I hope Nissan and the dealership sees it as an approved add-on/accessory that doesn't affect the drivetrain warranty. Yes, they should have thought of it before, and they should do a retroactive for us simply because it's not an upgrade or option that should have been left out, especially for a sports car with a known issue....and they did know this! Otherwise, why have built in countermeasure in the limp mode protocol and install one in the upcoming model. They should help us out....doesn't mean they will, but they def should. Having exprerience limp mode, it does pose a possible danger while driving. Imagine suddenly not being able to rev past 3k rpm's while in stop and go traffic... then the traffic clears and everyone around you is doing 60mph. This happened to me before I knew of the limp mode issue and I can honestly say it was a nerve racking experience. Obviously not as dangerous as a stuck throttle or not having brakes, but there is an element of danger and the possiblity of a crash.

I say we post our concerns on the Nissan Facebook page and let Nissan know we as a community want this done retroactively. We're a big enough community to have some say in this don't you think.

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Mt Tam I am

I do not expect an oil cooler leak or explosion, but if one were to occur I would like to think Nissan would honor their warranty since I had it all done at the dealership.

I know I am a dreamer but if I were on the jury it would be this way.

If you built the velcro oil cooler I would not expect the same verdict.

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