your tire sidewall reading is for MAXIMUM psi only, NOT for you and your RV...
your Michelin or Goodyear brochure/manual will show you what the Weight vs PSI for each axle should be - IF you have weighed your vehicle. If you haven't, then it's best to use the axle max load rating, then back it off 10% as a guesstimate until you can get it weighed. Most any 'branded' truck stop will have a CAT scale or similar, usually $8 to $12 dollars and it's very easy.
the higher the psi on your tires, the rougher the ride... but if too low, then you suffer on MPGs...
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the Turners...
two Campers, two Electric cars
former diesel pusher traveler
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