I took my car on the german highways and backroads for years in the 90s, occasionally exceeding 6.000 rpm for a minute or two (160 mph). I also drag raced the car.
A week after I added an
oil cooler back then I taped it closed. Never needed it. Kept it in the "loop" because my Chevy block had outlets for it.
For non-track use it's a waste of time and money, unless you are a very dedicated driver on mountain roads keeping the engine over 4.000 rpm and hardly getting out of second gear.
Or you are racing up and down a german Autobahn without speed limit at 4am.