In article ,
wrote:
does oil flow reduce if thicker? Or does the oil pump just deliver
higher pressure? If it's an engine driven gear type I'd expect the
latter.

Oil systems usually have a maximum pressure limiting valve. And yes, a
thicker oil isn't going to circulate as quickly. Oil also helps to cool
bearings etc. Which it won't do as well if circulating more slowly.

--
*Puritanism: The haunting fear that someone, somewhere may be happy.

Dave Plowman London SW
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