http://www.5thwheelforums.com/forums...=tire+pressure
Scroll down to the 8th post on the thread link above. I know it relates to the G114's which are 17.5", but the point in question can be made just the same.
Just my opinion, but I don't think 80# pressure in the G614's is enough, regardless of what the chart says, and as such you are getting more increase in pressure due to heat caused by sidewall flexing as a result.
Air them up to 100# for example and I bet you don't see a resultant percentage of increase as you did at 80#.
Note the asterisk which notes that the pressures on the chart are good as of 01/01/05 and to go to GoodYears website to get current inflation rates. As of today's date it still says the same thing "01/01/05".
Now rdunk, fire away!!!!!
