I had original rubber on my truck when I received it. The tires quickly played out as I started driving it over Montana gravel roads.

I replaced the old tires with Cooper 235/85 R16 10 ply. They are taller tires. Over 100 measured miles the odometer is reading about 95 miles traveled. I would imagine I am rolling faster than my speedometer indicates as well. But in Montana the Interstate speed limit is 75 mph. I ususally do not go that fast.

So, if I could have an accurate measure of miles traveled I might be getting even better mileage than I calculate.

My truck runs like a dream at 1800 rpm in 5th gear going about 65 mph, and I fit comfortably in it to boot. Happy driving.

RKL