Mileage observations
We just returned from a 4000 mile road trip. Flatlands, hilly, mountains, wind - everything but rain!
Over the coarse of 29 fuel stops and trying many different speeds, gears & rpms. I think I found the sweet spot - 65mph @ 2100rpm in 5th gear. Running a lower RPM in 6th gear caused a de-crease in fuel economy and the engine felt like it was lugging some. Of coarse if I ran at 55mph I think I would see some improvement - just a bit to slow.
Over the whole trip I averaged 10.22 MPG - 200-300 miles of these miles I was not towing the trailer. I don't really budget my fuel expenses, however I was hoping for 10mpg and half way expecting it to be in the 9's - so overall I am happy with my results.
Worst MPG: 7.62 into a stiff head wind
Best MPG: 11.96 in the mountains, lower speed and thinner air.
Wind & Speed kill MPG - the old rule of increase your speed by 10mph and watch your mileage drop by 10% holds true! I had one day that I was on dead flat roads with no wind 70mph - 9.79mpg, 65mph - 10.96mpg.
2015 Silverado 1500 Crew Cab, 5.3l, 3:42 gears
2017 Jayco 23BHM - weighs in around 6000lbs.
Over the coarse of 29 fuel stops and trying many different speeds, gears & rpms. I think I found the sweet spot - 65mph @ 2100rpm in 5th gear. Running a lower RPM in 6th gear caused a de-crease in fuel economy and the engine felt like it was lugging some. Of coarse if I ran at 55mph I think I would see some improvement - just a bit to slow.
Over the whole trip I averaged 10.22 MPG - 200-300 miles of these miles I was not towing the trailer. I don't really budget my fuel expenses, however I was hoping for 10mpg and half way expecting it to be in the 9's - so overall I am happy with my results.
Worst MPG: 7.62 into a stiff head wind
Best MPG: 11.96 in the mountains, lower speed and thinner air.
Wind & Speed kill MPG - the old rule of increase your speed by 10mph and watch your mileage drop by 10% holds true! I had one day that I was on dead flat roads with no wind 70mph - 9.79mpg, 65mph - 10.96mpg.
2015 Silverado 1500 Crew Cab, 5.3l, 3:42 gears
2017 Jayco 23BHM - weighs in around 6000lbs.
