Use CSF Radiator's Internal Radiator for ATs for Oil Cooler?

Jordo!

For modern synthetic oil, that's not really too hot. For dino oil, it would be pushing it. On that note, Nissan wouldn't wait until 260*F to go into limp mode if the oil viscosity was breaking down 40* earlier.

That said, you will see peak power at or below 200* F, and the ECU will start to pull a little timing over 205* F.

But... running too cold (say, 165* F), especially under high load, is generally worse than running a little hot, as far as maintaining proper lubrication.

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