Hi. My tire shop claims I should not fill my tires to the rating found on the side of the tire (80 lbs) and that is only the max rating. Instead they say 65 lbs. I don't believe it. Are they correct?Thanks
Posted 2013-03-11 12:59 PM (#150513 - in reply to #150512) Subject: RE: Tire pressure
Expert
Posts: 3802 Location: Rocky Mount N.C.
Remember, your tire man is in the business of selling you tires when you ruin one running it under inflated.... I would air them up to the maximum cold inflation pressure. Load range "C" is 50 psi, lr-D is 65 psi, lr-E is 80 psi, lr-G is 110 psi, or as stated on the tires sidewall.
Posted 2013-03-11 2:28 PM (#150515 - in reply to #150512) Subject: RE: Tire pressure
Expert
Posts: 5870 Location: western PA
DITTO For the greatest load capacity, use the maximum inflation specification printed by the manufacturer on each tire. Running an under inflated tire with a heavy load, will cause damage to the sidewalls, increase the heat in the entire carcass, and can lead to a premature life span.
Remember the Firestone debacle? The tires were run under inflated to provide a better, less harsh ride. This resulted in them being over heated, causing carcass failures and blow outs.
The fastest way to kill a tire, is to run it whilst under inflated.
Posted 2013-03-11 3:40 PM (#150519 - in reply to #150518) Subject: RE: Tire pressure
Member
Posts: 11
Location: The Nederlands Europe
To see who is right , you should calculate it.
for that you need the maximum load of the tires and the number of tires on the road.
From the trailer the weight when using with horses in .
If you give those , I can calculate it with spreadsheet I made.
Using not much more pressure then absolutely needed , makes the comfort for the horses better, and the tires are still save.
Only tires for off road the story is a little different so if they are write so.
Tire pressure
