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John E Davies

Full sized diesel pickup towing mpg?

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Just got home and after 3025 miles at highway speeds we got an overall average of 14.5 mpg. We saw a low of 12.4 while climbing into ferocious headwinds (40+ mph) and a high of 16.4 in milder conditions, descending.


The Cummins 5.9 definitely noticed a trailer in back but it didn't slow us down on the grades. I maintained 65 mph mostly, with 70 mph when forced to by traffic doing 85+. It was very relaxed cruising - check out the tachometer: 1750 rpm at 65 mph.




I love a big diesel for long range towing.


John Davies


Spokane WA

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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags.

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