Yep. David is right. Motor oil needs to be heated up to remove condenation
and acids which if left in the crankcase will eat bearings and other
surfaces. So if you run an engine at a lower temp you can harm it as much
as if it were ran too hot-but maybe slower.Maybe you could over come this
if you changed your oil and filter more often. But at what cost?
Bill Witz 84 Westy