From a previous thread!
Also, another nugget of knowledge about the tires on the Miramar and most other larger RV's. We have Michelin 235/R80/22.5. The side wall shows a max inflation of 110 PSI. The placard Thor has placed in the vehicle tells you to run them at 90 PSI.
It appears that 90 PSI is what you want to run them at if you are loaded at the max weight. I found this chart on the Michelin web site that is much more accurate. Instead of running the tires at 90 PSI, I will now run them around 77 PSI based on my weight! I've found this chart and the accompanying info very useful! I hope others may benefit from it!!
Load & Inflation Tables | Michelin Truck
Thor Forums
