ctechbob
Well-Known Member
@Grumpaw and I have an extra foot of width to contend with.4650 lbs 7’ wide RV 60mph we average around 15mpg. Sometimes more, sometimes less, but that’s what I budget for trips even East and West to the mountains. Not sure why folks are seeing 10mph at those speeds. I hand calculate, and have never seen less than 13 for any tank.
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