Try a set of ARC cool fins first to drop temps a wee bit. Stupid, cheap, and tacky, but works well for a 10-15* F drop.

Behold:

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

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

I found this oil cooler on the internet.
http://www.fast-autos.net/diecast-ca...0707197715.jpg
I'm pretty sure it won't void your warranty.

:icon17:

You have to realize that people who post on forums generally have some kind of issue with something...in this case oil temp. When you start seeing these threads about people's oil temps getting too high you feel like this is a major problem for everyone, when in fact it is only a small percentage of all 370z owners. Ive driven my car in VA and NC in the summer (temps up to 102 and 100% humidity) and I haven't gotten the oil temp over 220 except one time, it went to like 222 haha.

Unless you plan on pushing the car hard for an extended period of time (Tracking or Autocross) you dont need to worry about it.

I agree. People get crazy just because they can see the oil temp. Unless you are running over 280 degree's daily, I don't think you have anything to worry about. If it is getting higher than that on the street, I'd contact Nissan corporate, because that shouldn't be considered normal... as long as you aren't driving like you are on the track. :)

The absolute dumbest thing Nissan did with the 370Z was to include an oil-temp gauge.

For 99% of the people out there, the only problem that truly exists can be solved by cutting a wire or two.

Agreed. Nissan determined that their bearings will just start to break down somewhere north of 300 degrees due to their constuction technique (reformulated bearings no long use lead for enviromental reasons) so they put a 280 degree safety limit. Cars aren't actually "overheating", the safety system is just kicking in.

Taking the cooler off is simple and can be done in under an hour. If you have a fluid extractor, you can even reuse your oil.

I made a DIY post about a simple cover for the cooler. Just use a sheet of aluminum and some velcro. The car heats up normally in the winter that way.

If you know anything about oil, you will know that oil are actually more efficient at higher temperatures. As long as the engine is built with high tolerances, it shouldn't be a problem running at 200-250F temperature. It's just a by-product of emission and superior oil now compare to 50 years ago.

The Corvette guys been complaining about it for years, people just need to calm down.

This has got to be a forum record for the most misinformation in a single thread.

Nah, there are others that have more bad info...
....well, maybe not...

Even better is just installing a cooler with the correct thermostat setup.

Your temps shouldn't be staying at 240. Try changing your shifting habits. Less engine braking in traffic and changing to a correct gear helps a lot. You shouldn't need an oil cooler at all for normal driving. The outside temp doesn't really have a huge effect on oil temp. Coolant temp maybe, but last summers 100 degree heat had little effect on oil temp. There are add on's to prevent over-cooling also. I forgot what it's called. Just read through the thousands of post regarding oil coolers.

Wait. What? Nissan included an oil temp gauge? I thought that gauge told me how many miles I could go between service visits. :icon14:

Mine tells me to ignore the voices in my head:icon14: