285/70/17 KO2s. In so many words you stated that to get advertised MPG you have to be completely stock and drive like a grandma, below 65. My experience and many others I have read don’t agree with your observation. If you want/need heavy 38s or other significant weight or aero detrimental mods, you pay the mpg penalty, simple as that. Doesn’t mean people with more stock configurations are coasting down hill both ways.
What app are you using?Disagree on the speed component, specifically having to drive below 65 to get in the high 20s on the interstate, in my normal interstate driving I go between 70-75 around 80% of the time, when not passing or slowing for traffic. My mix of highway to city miles is about 70/30 and below is my last 4 months of Fuelly calc mpg, no towing or heavy hauling in this time period. I do agree on the truck setup, wind conditions, and elevation/topography being big factors; although I think the same is true for any engine, maybe to varying degrees, the harder it has to work the lower your mpg.
What is this that you’re using to track the fuelup and mileage?Disagree on the speed component, specifically having to drive below 65 to get in the high 20s on the interstate, in my normal interstate driving I go between 70-75 around 80% of the time, when not passing or slowing for traffic. My mix of highway to city miles is about 70/30 and below is my last 4 months of Fuelly calc mpg, no towing or heavy hauling in this time period. I do agree on the truck setup, wind conditions, and elevation/topography being big factors; although I think the same is true for any engine, maybe to varying degrees, the harder it has to work the lower your mpg.
