Air in tires

[Chappy2351]

We have a 31 ft. Jayco Precept, 2016, does anyone know whether the tires on these motorhomes have regular air or Nitrogen filled?
Second question has to do with measuring tire pressure in the back tires and please forgive the ignorance, but there is only one air intake valve or at least one that is visible, if its only one does that mean that if the gauge is reading low pressure that is obviously for both, or is there another gauge for the inner tire?

[schrederman]

Even so called "nitrogen filled" tires do not have 100% nitrogen in them... it's a sales gimmick except when you're talking about high-altitude aircraft tires. The air we breathe is about 79% nitrogen anyway so just keep them aired up and don't worry about it.

Not looking at your wheels and tires, I can't answer question #2... Good luck and enjoy! And... there are no stupid questions. We all learned this stuff from someone else.

[Grumpy]

Originally Posted by Chappy2351

or is there another gauge for the inner tire?

There is a second valve stem for the inner dual. You would have to install "Crossfires" or similar to use only one fill point.

[Chappy2351]

Thank you for your quick and informative reply

[NickM]

If they don't have green valve caps then regular air is inside. I agree with the sales "gimmick" statement, just air up with regular air.

My 35S is at the dealer having some warranty work completed and I am having extended valve stems installed on the rear inner wheels so that I can reach them with a standard air chuck. I'm not sold on the single feed point for both tires, there are some negatives with single feed.

[Chappy2351]

Thanks NIck, very helpful