With the stock oil cooler, you temps will be about 230 in normal driving in the summer. If you go to the track, tail of the dragon, etc you will need a better oil cooler. Since 2012, the 370z's have oil stabilizers installed at the oil filter. It is commonly called an oil/water heater on here. In high temps they don't do much good. The oil temp gauge on our car is after the oil cooler so temps are actually 20 deg. hotter than the gauge shows. Our cars start to cut power at around 240-250 deg oil temp. From what I remember, limp mode is at 260 deg. I have installed an oil cooler and am glad I did.
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