Agree with above. I remembered reading on the 350z forum, oil pressure is very high with cold oil temp, and dropped off significantly once oil reaches 100F. The only thing about oil temp not reaching 212F is that you won't be able to "cook off" any water that may have gotten into the oil. (370z oil temp is taken post oil cooler so 180F will equate to about 200F when circulating inside engine).
A few times, I just turned on the car and let it idle, took 30 min to get up to 180, then dropped str8 back to 160 within a few min once I get on the freeway, that's with 1/3 of the cooler covered up (34 row).
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