towing mileage of trucks
Does anyone have a range of MPG for a F-450 dragging a 18,000- 21,000 5er? is it much different from Ram 3500?
Forum Discussion
Cummins12V98 wrote:
My 98 with 3rd gen take offs for tires I had to add 5% to my miles driven then divide by gallons to be ACCURATE.
Going from the OEM 245s to 265s on my truck puts me 4% =under= actual on the speedo/odo. I add 4 miles for every 100 when calc'ing mpg. It DO make a difference! For speed, I use my ScanGauge II, which is calibrated to read 4% over indicated and is within 0.5 mph of my GPS. OTOH, my '11 Sonata reads 4% HIGH, so I get even worse mileage than the liar, er, dash reports. Before I realized the odo error, I would get 1-1.5 mpg LESS than the dash reported, around town. On the highway, it's about 1.5-2.5 mpg difference. Add that 4% error on top, and I lose about 12 miles per highway tank, which boosts that difference to 2.5-3.5 mpg. Hyundai keeps telling me that I'm "within spec". Yeah, right... Oh, tires are OEM size.
Lyle
