Kiawasaki FR651V oil cooler ?

[Skippydiesel]

Fully agree with this. If your engine oil is at say 275F+, then I can see to start, looking at a cooler. Under 275F I would pass. I like that new German oil called Good-N'-Hot.

If you have consistent oil temperature above 110C, peaks, under load/ dust chaff build up/very hot day, may be much higher - I would consult with the oil manufactures technical advisor.
It may be that the oil is good to 120C plus - equally it may be better that the oil runs somewhere between 95 - 100C.