My recommendation would be to put the cold tire pressures recommended by the manual this info is also on side plate on the front street side. 65 lbs cold. I have a small portable air compressor purchased from Home Depot it was 39.99 and works great I think I posted a picture a couple of months ago if you search my posts or search air compressors. It is a very good tool to keep with you on the road. It is portable rechargeable and needs no wires. Now it takes a little bit of time to air up but it will do for now until I put an on-board air compressor and tank in the back of the truck to accommodate my future AIR HORN for the truck  .
__________________ AZstreamin "Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines, sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover."- Mark Twain |