Gas mileage depends on many factors including the use of cruise control and cruising speed. We have owned three Jaycos a 1999 Granite Ridge, a 2006 Granite Ridge, and now a 2018 29 MVP. The mileage has improved over the years most recently with the addition of the 6th gear. I don't use cruise control in the hills and typically travel at 60-65 mph. I set the cruise control at 62 when I use it. On our trip to Wyoming last summer we averaged something like 9.26 mpg over a 5000 mile trip. No tow vehicle and the unit was loaded to near max weight. Our 2006 averaged around 8.5 over the exact same route.
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