Quote Originally Posted by Alitis007 View Post
How does oil temperature affect water temp??
Quote Originally Posted by nissannewby View Post
The oil filter housing has coolant running through and sees this before the returning back down the head so the coolant is already warm.

An oil cooler is a very good idea. Keeping oil temp in check is also good for your engine. If the oil temp gets to high it starts to lose its ability to lubricate efficiently and as the filter housing is cooled it then transfers this heat to your cooling system.
Quote Originally Posted by Bigcol View Post
well, your water's ability to keep the engine cooler is impaired by the fact the engine & oil is already hot........
as has been said - very hot oil tends to loose its viscosity (ability to lubricate & ability to transfer heat around)

if you can keep the engine oil cooler, it will help the coolant in cooling down your engine temps...............


my understanding of it anyway...........
I won't say you guys are wrong but I will say my question is still un-answered and you guys are talking more about the affect of temperature to oil viscosity rather than how oil temp affacts water