For the 776-mile tank,between Green River,Utah and Fernley,Nevada,I pulled the 250-miles of 65 mph travel out,indicating 36.9 mpg for the 55-mph portion.
If I throw in 4-mpg for the missing boat tail I'm knocking on 41-mpg,on unleaded Regular gas.If I throw Audi's 1.30-X TDI factor in,Spirit would be looking at 53.3 mpg.
The Dodge isn't THAT bigger,nor much different in weight,so 40-mpg seems real doable,even with the firewood hauling capability.
