this has been beat to death
.. if you blow up a motor and crap gets in the rad cooler I would eliminate it.. IF ya go to a F body radiator you don't have an oil cooler in it so you eliminate it.. I have been running without one since the early 90s in my FLEET of Buicks/TTAs.. I change my oil regularly and the car doesn't run hot (160/170) so it isn't "heating" up the oil ..
some like it some don't..