Motor home tire pressure

hohenwald48 wrote:
I'm not 100% sure (maybe like 99.99%), but I don't think it matters who's pressure chart you use. I think as long as you are looking at a chart with the correct tire size and load range then all charts will be the same for any given weight. So it's not necessary to find the specific tire manufacturers chart. However, in these days of Google and the internet that shouldn't be too hard to find.

While there may be a few oddball tires out there, for the most part, that is correct. I also believe that all RV manufacturers base their tire pressure tag on GAWRs. So if the OP has the same size/load range tires as listed on the tag, it would appear that he is is overloaded on the front axle, since 80psi (listed on the tag) in a 225/70-22.5 tire supports a maximum of 4190 lbs, not the 4320 that the OP may be carrying.