Quote:
Originally Posted by OrbitalEllipses
I can't verify what the engine control logic is, but oil that is TOO cold isn't good either - I think we can all agree on that. It's about the middle path, as Aristotle said.
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Yep, not hot enough and you don't boil off the water and fuel that gets into the oil. You also don't set off the additive pack until it's warm (additive pack stuff could take up an entire other thread)
Keep in mind that any thermostatic oil cooler is never truly closed all the way (how else would you fill the heat exchanger?), same goes for the coolant thermostat.
Factory oil to water coolers are used all the time because they're cheap. While they work, there's a reason race cars run thermostatic air-oil coolers...