I got interested in an oil cooler when my tired ass 1.6 TD that I drove the hell out of was seeing 240F and more during hard use.
I thought that was a bit much for a stock motor with dino oil that I wanted to last a long time.
I expressed my findings, having added an oil temp gauge and observed such, to my Pop
when he had the 82 and was installing the AAZ, so he went looking an oil/air cooler instead
of the coolant heater stock setup and scored a rather large Fluidyne unit .
That's how I ended up with such overkill.
It don't need it NA, but it's a hell of a safety net.
Crossing AZ with two people and a bed full with it on the floor in
5th forever I was glad it was there, ditto through the Mojave with the AC on
at noon. It's kinda like being too rich or too skinny, except for that thermostat.
The good one's bleed like a coolant thermostat as noted in the link I posted.
Also, overkill is consistently more fun.