Have you read Diesel Dave's thread on the 2,000-mile tank of fuel? In it there are posts in re the way he charts data (climate/terrain/temps, etc) as well as discussion of average speed versus engine hours, etc. I, too, have a UG (and like it) but there is room for the larger picture as well.
Note also engine coolant and oil heaters (trans and rear axle also?}. You guys with fixed commutes have some things very easy that make this electrical draw a measurable, efficient benefit.
NIce job, thread much enjoyed (but I'd put the wipers back on, you ain't saving enough [no one does] to offset the safety penalty).
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