That trip with the engine too cold?
20.9 MPG!!!!
Ouch!
It had some more 70 MPH on it, but still, I think the cold took it's toll there.
So I cardboarded over 90%+ of the radiator, and went up over a 4500 foot pass on the way home. It went about 5 degrees above the normal at the worst case on the climb.
This was a solid 55~60 all the way, no faster and some slower.
26.3 MPG again
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2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears