[4DSZR1]

Let me ask a dumb question.

If the oil cooling thermostat doesn't open until the oil temp reaches 230, doesn't this mean that oil doesn't circulate through the cooler? If this is the case, then I dont think in 4 years I've ever seen anything close to 230 oil temp. How do I drain the old oil thats siting in the oil cooler? In the event that the therostat opens someday, I dont want the old oil possibly contaminating the fresh.

Am I worried about nothing?

Thanks

Rick