Well because I was lazy and didn't want to haul the compressor and generator over to the storage lot where we store the 5th wheel, I now have to buy 4 new tires.

I rationalized in my mind the trip was only 130 miles, I knew the tries needed air but figured I would stay at 55MPH instead of my usual 61MPH and the tires would be OK.

They were on the way down to the RV resort.  However, on the way back puffs of blue smoke coming from the right side 5'er tires spotted in my rearview mirror, indicated something was wrong.  We were about half way home.

The smoke would puff out over bumpy sections of the freeway.  I pulled off and found a big parking lot.  First thing I looked at was the suspension to make sure it hadn't broken.  Then I noticed the front tire tread was crowned instead of flat across like the other 3.  It had crowned enough to cause the tires to rub together on rough sections of the road.

I checked the pressure, the 80psi tire only had 60psi.   I'm guessing the low pressure had caused the belts to break loose and the tire was beginning the process of tread separation.

I put the spare on and went to a station and pumped all tires up to 80psi.

We made it home without further problems, but I noticed the rear tire tread had now crowned as well.

So I can't trust the tires on the other side of the trailer since they were about 20 psi low as well.  I get to buy 4 new tires.

So my laziness caused about an hour delay in getting home, heavy lifting and work changing the tire and about $800 expense for new tires.

Don't be lazy.... make sure the tires have the correct pressure.