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...
Forum Discussion
Kayteg1 wrote:
7 years and the guy never come back to report final result.
I just wasted time reading it.
I guess you missed it.
Well, I have made a few trips, unloaded, and out on the freeway at 70-75 mph I would average about 18-19 mpg. Before I would never get over 17, usually 16.5 or something. I was always in a real hurry, so driving for MPG was not a priority. If a guy set the cruise at 70, I bet he would get better than I got. I was racing the clock.
So it definitely did improve the mpg, but also it is nice to not be revving the motor so crazy. I just drives much nicer, more relaxed.
I haven't put many miles on, pretty busy in the summer here on the farm. I think when I do need new tires someday, I'll probably go up a size or two to even further lower my rpms. I know I was trying to avoid larger tires when I started this thread, and I still am, so we'll see.
I would like to make a long trip on a highway, 60 mph, and see what kind of mileage I get then, but I don't know when that will ever happen.
