#1 - do not air up to the max tire pressure unless called for as determined below.
#2 - Weigh your MH on all four corners. I did this by going twice around the scales at a PILOT truck stop. First, I only put one side on the scales, giving me individual weights for the front and rear tires. Second, I did all four corners, which allowed me to compute the other side. Do this when your MH is fully loaded for travel, with full fuel and water. If you fill with fuel at the same time, PILOT might give you a break on the scale charge.
#3 - Go to your tire manufacturer's website. They will have recommended tire pressures specific to the make and model of the tire. If you have dualies on the rear, they will have pressures for that as well. Use the pressure for the highest weighted wheel on an axle, for both wheels on that axle. In other words, if your left front has 2500 lbs and your right front 2800, use 2800 for both front wheels in the pressure chart. Some people recommend rounding up to the nearest 5 pound pressure (ie 80 for a recommended 78), but its OK either way.
#4 - Tire pressures are always measured and adjusted when cold.
That's it. Easy peasy. Oh yeah, once you figure all of this out, write it down so you can find it next spring.
2005 Coachmen Sportscoach Encore 380DS
2014 Jeep Wrangler Rubicon Unlimited