How many times have you seen click bait like that? Well, folks, it ain't click bait.
When I picked up my coach it was inflated to 90 PSI. The steering was extremely squirrelly, requiring a ton of steering input to go straight. I could barely take my eyes off the road to check a mirror before it would dangerously veer off course. It also rode quite hard, especially over expansion joints.
I weighed my rig and consulted the Michelin load and inflation table
for my 235/80R22.5 G tires.
I deflated my tires to the recommended 80 PSI and drove home. I could hardly believe I was driving the same coach. The ride was soft and compliant, the steering, straight as an arrow. My stress completely disappeared and I am looking forward to my next 2,000 mile trip.
I have read many pundits recommendations to fill to maximum pressure. That information is simply wrong. A coach is not a trailer and the manufacturer knows best. Extend the life of your tire and enjoy the ride by using the correct inflation pressure.
Overinflation will cost you more in tires and stress than you save in gas.