Quote:
Originally Posted by kenyonscs
The engine needs a better oil cooling system. It could be that Nissan has improved the oil to water heat exchanger, but I don't think so. I'll find out when I get my new Z, but I don't expect any changes.
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I never had problems with temperatures as far as street driving goes, very spirited driving would get temperatures to about 240F. But the climate up here in New England is fairly mild, it will vary with ambient temperatures obviously.
On track oil temperatures reach extremes pretty quickly, within 2 laps if you're pushing it. For this and oil cooler is a definite requirement. On the street an oil cooler probably isn't necessary unless you push it on a regular basis.
FYI - there is no oil to water heat exchanger (like most performance cars would have), Nissan relies on indirect heat transfer from the oil to the engine block to the water in the cooling passages.