Question: Presently in Albuquerque.... came in from Houston, tx....getting ready to proceed to St.George,Az.... all tires are about 5 lbs low.... how does temperature and altitude affect tire pressure...
Nobody mentioned - Get it weighed. Pay the money at a truck stop and then look up what the tires should be for that weight. This can be found with a short web search. Same size tires by different manufactures only vary slightly. I have no clue how to include the tag, I have never had one.