Larger circumference tires better mileage?
I am wondering if this could be true. I ordered my dually with the 4.10 rear axle for more power pulling the heavy 5th wheel. At 70 mph I'm over 2000rpm. Now that I'm getting a TC I don't need that mu...
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Thanks for the good advice, I'll gladly take it, especially since I don't have to do anything at all. Was just a little concerned about running high rpm (2000/2100)from TN to CA 3 or 4 times a year. I'm used to a Peterbilt 13spd that runs 72 @ 1600rpm. So the Cummins 5.9 is good with 2100 for 500,000 miles, with proper Maintenance?
