update, drove to the fuel depot, just under 10 miles. My street registration only allows me to drive on roads with posted 40mph or less, (ok with me) so, it's backroads, in winter, a few slick sports. I run winter street tires, no issue empty. On the way back, that additional 135 lbs of fuel (6.88x20) on one side of the bed, makes it wallow a bit, not a big deal on dry pavement, but slushy black ice is different, easy to make the choice to keep speeds under 25
Much better than a transfer tank in a pickup, I can go anywhere the tractor can go