Mileage was bad on the Toyo Open country M&S but they were among the best tires I've ever used period. I ran 38" tires on 17" wheels. They were E rated and did everything I could ask of a tire on such a heavy truck( cummins double cab 2500)

I just this late winter switched to the Toyo AT in 35" size. I did not need the aggressive Open country design I have Limited slips front and rear so I think I can get through most of my struggles with that setup. I also had planned many thousands of miles pulling my 7500b 22' camp trailer around the USA this year, so the additional Mileage was my priority.

E rated toyo tires are at the top of the heap in my opinion.

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