Originally Posted by Shamu

Typo on my part. "Lack" of lead content. The newer environmentally friendly bearings from Nissan haven't done well with higher oil temps. Issues in GTR motors as well.

As long as you guys are ok with shortening life of a motor that should last 200k miles. I'd do all I could to assure temps are kept below 240.

I knew I was going to rebuild my motor so had some fun with raising RPMs to 8000 at a couple events about 20 minutes running with that redline. Pretty clear to me you want to keep revs and oil temps as low as possible on stock internals VQ. I have pics to prove what happens and my motor only had 15k miles mostly street miles. Based on my experience I just wouldn't be cocky about running 250 oil temps and would be looking for more cooling to extend your enjoyment of the stock motor.