Ask a performance boater about a "Drive Shower". Oil cools well there too.
Doesn't make it necessary or even helpful in all cases though. Mikes post
makes sense too.
Wayne


"Dennis O'Connor" wrote in message
...
Don't underestimate the amount of heat the oil removes from the engine...
It is critical... Without it's help pistons would burn up within minutes,
valve springs would overheat, etc...High powered engines often have a an
oil
spray directed to the bottom of the piston... The oil cooler is needed
where
the oil pan, case, prop hub, and tappet covers, cannot radiate the heat
load
adequately...
Denny

Oil doesn't do "coolling" per se;