3 ms·

Yes, but at an average of 40000 lbs over the 5 axles they are still multiple times heavier per axle than a regular car.

• ProAm 9y ago
  But they also buy multiple more of gas no?
  • rtkwe 9y ago
    Estimates put it at about 6.5 mpg not enough to make up for the exponential way that their weight increases the damage they cause.