Using 5W-40 on Z's with no oil cooler

brainrain

They can't even solve my problem with my keyfobs ...
and they did not see much nissan 350Z/370Z

I don't know how people drive in north america (smoother driving or aggressive driving) but in France many Z owners drive only on weekends (with aggressive driving ).

I would use Mobil 1 5w30 Esp Formula because he have a high HTHS rating.

FL 4Motion

Why not just add an oil cooler, run factory rec 5w30 and not have to worry about excessive heat issues? Wife and I only ran M1 0w40 bc it was more track car than daily driver.

If you’re not tracking, then a 19 row oil cooler will be just fine, or even a 25 row. 34 row is only necessary if you’re gonna go to the track, or if you live in ME.

Zyonara91

Exactly. I run a 19 Row out here in Toronto, it handles traffic, spirited driving coupled with hot weather just fine. I do not track hence the choice.

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