Join Date: Aug 2009
Location: Rocky Mountains Front Range
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I see the same-ish temps on the backside of a mountain coast. My truck will hardly reach (keep) 160 ECT after a 15 mile coast downhill in the cold. It can be 215 at the top of the hill, ECT and Veg oil temp both, but ECT will be 160 and veg will be 140's at the bottom. I treat it like idling in the parking lot...I usually kick the d2 pump on/ veg off, no purge, right at the top of the hill and start of the coast. Truck ECT and veg temp stay much higher with the radiator airflow blocked. Not sure if that helps but its what I do.
B100 is awesome if you know someone who makes good stuff <--- these guys are tough to find...
2005 Excursion 6.0l Eddie Bauer, 175k