Not to bust anybodies bubble but if you are running 245/75/R16 tires then your fuel economy is going to be skewed. Your spedo is off which in turn makes your odometer reading off which adds more miles than actually driven. I found this out when I got my GPS. I put 265/75/R16 tires on there and my spedo is right on now. So you might want to check that out. Tire weight is not the issue it the diameter of the tire. The larger the tire the slower the outer speed is going to be. That's where you lose most of your economy. Basically for every 3 to 4 miles subtract 1 to 1.5 miles from your total milage.
Lets say with 245/75R16 you can run 70mph at 2500rpm and get 22mpg
With 265/75/R16 you will get a lower speed @ the same rpm with reduced fuel economy because the odometer will read more correct.
on my old 245's I was getting 22 at 70mph but now with 265's I get that at about 65 according to my spedo.
Lets say with 245/75R16 you can run 70mph at 2500rpm and get 22mpg
With 265/75/R16 you will get a lower speed @ the same rpm with reduced fuel economy because the odometer will read more correct.
on my old 245's I was getting 22 at 70mph but now with 265's I get that at about 65 according to my spedo.