Originally Posted by LSUTurboTiger

I guess I will add a little something for the people who haven't bought a Z and are weighing this issue. The last thing I want to do is discourage someone who wants a 370Z from buying one. much less 25 people. lol.

I have had my black 370Z for 5 months. I have 6000+ miles on the car. I live in Orlando FL. Its hot here, most days now we are in the 90s - 95, 96 etc. I drive 60 miles a day. approx 10 miles of that is in bumper to bumper 5 mph traffic. when the traffic is moving I occasionally (not often) forget and have the car in 5th or even 4th gear on the highway. As I approach my home I hit 5-7 miles of open road and I drive it hard. I drive it hard whenever I get the chance.

My car has never reached 260 oil temp. not even close to be honest with you.

IMO unless you are going to track the car, its a non-issue. I have yet to have this issue affect me and I am the farthest thing from a conservative driver. I also am not going to track my daily driver so its a total non-issue for me. When they offer it, and they will I bet, I will probably buy the NISMO cooler just for peace of mind, but IMO its not needed for most daily driven cars. I can't imagine many places hotter than Orlando FL, probably Arizona.

I love my 370Z. Its been fun since day 1. I don't regret getting it at all even if they never offer an oil cooler. Track guys may feel different.

Originally Posted by bluzman

Here's more anecdotal data. Had to go to a place near Phoenix last Friday, about 525 miles each way. From northern Santa Barbara county, that means most of the trip is a boring run through the desert on the I-10. The temperature was over 100 by the time I hit Palm Springs and stayed between 100 and 105 the rest of the way (about 250 miles). There are several long uphill pulls in that stretch (Indio to the Chiriaco Summit and from the Colorado River nearly all the way to Quartzite are 2 examples) so I figured I'd find out whether my Z has issues. In the heat, I mostly ran between 75 and 85 MPH (except for a few short bursts at higher speed while dusting off folks who thought they wanted to play but who found out they weren't in the same league with a 370Z). BTW, the A/C was on the whole time.

Bottom line is that the oil temperature never got above 238 and then only on long pulls. On average I'd guesstimate that the oil temperature ran around 225. Like I said, this is just my experience with my car and my driving. I make no claims about broader implications. What I will say is that I personally am no longer concerned about oil temperature problems. YMMV.