Posted by jose bagge on November 12, 2011 at 16:11:12 from (75.104.128.55):
In Reply to: Tire Pressure posted by John T on November 12, 2011 at 13:24:29:
My credentials are not the greatest, but I"ve been in the tire industry since "74 (started as a tire tech), I"ve run as many as 43 locations in 5 states at a single time (72M annually in yearly sales before I got the he11 outta retail), and currently move about 10,000 units a month wholesale for the best tire manufacturer in the world. So, here"s my opinion, based on seeing way too many used up casings : run them at the max cold inflation, ESPECIALLY on an RV. You will ALMOST never see a radial tire wear out prematurely due to over-inflation; on the contrary, you will see thousands fail due to underinflation and impact breaks caused substantially by under-inflation. A tire"s maximum dry traction occurs at high inflations due to stiffer sidewall creating a more consistent contact patch during roll- test it with a pyrometer and you"ll see. Load carrying capacity obviously is at it"s highest at max inflaction: vehicle placards err on the side of ride comfort and may put you in jeopardy (doubt it? Just ask Firestone/Ford/ millions of Explorer owners who kept me backordered on 235/75-15 for years). Long story made very short: a tire will grip better, last longer, carry more load and just generally be safer at the maximum cold inflation based on my professional observation, which has been accepted in the courts of State of Va and the Dist of Columbia (big whoop) as expert opinion. (warning: opinions expressed here are not sanctioned by the best tire manufacturer in the world, who still wants you to run what"s printed on the door of the vehicle). PS; Nitrogen is a waste of average joe"s dough- but that"s another thread.
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