I've been wondering about MPG vs. GPH (gallons per hour) and it's relation to mpg. I've always wished that vehicle mfg's would be required to install hour meters (like tractors and boats) along with the tripometer so you could have more information on how the car was driven and how many hours it has ran.
Also it's interesting that you may get better mpg's on the highway, but you get much less gph's driving on the highway compared to city driving... or more importantly trail driving. Thinking of it like it was a portable generator, a generator will run longer on a smaller load.
I did a quick calculation on excel but it's just a straight calculation of avg. mph
. Maybe someone has some more information on how many hours they get out of a tank of gas on the trail and what their mpg was on that trip. It would be interesting to have one of these