Oil temps: 335 comparitive observation.

Elan

Literally read this thread as oil temp at 335 degrees. Was about to say you have a major problem.

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2011 Nismo#91

Me too.

Anyways, corvettes have the same issue with the oil temp getting very hot if you push them. This is nothing new, all your standard production cars will overheat their oil if you push them hard for some time. Its just you won't know you're doing it because 99% of all these cars don't have an oil temp gauge. If we didn't have an oil temp gauge and limp mode no one would even bring these topics up.

The oil weight that is recommended at operating temp (100c or 212f) for this car is a 30 grade.
If you are seeing high temps constantly switch to a 40 grade.
You can see in the chart that a 30 grade oil at 212f has the same viscosity as a 40 grade oil at 240f. Those these only come in 10w40 commonly so you will lose some efficiency for cold starts because the oil will be thicker then a 5W.

JARblue

Mobil 1 makes a 0W-40. It's their European blend. And it only costs $25 for 5 qts at Walmart. I know a number of forum members are running it. I was considering it because the Z runs quite warm. I may try it for my next oil change to run through the summer. We'll see.

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