Quote:
Originally Posted by Local150
These are not original tires ,, only have about 50 miles on them
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Okay, here's the basics for inflation pressures for the replacements.
First, they must have a load capacity equal or greater than the OE tires provided at their recommended inflation pressures found on the vehicle certification label. They should be approved by the vehicle manufacturer - good luck with that one.
The new tires must be fitted to wheels/rims with size and specifications suitable for proper tire mounting and fitment into the vehicle wheelwell with sufficient clearances. New valve stems must be used with PSI ratings equal to or higher than required by the replacement tires.
If the new tires don't conform to the tire load/inflation chart for the OE tires a new recommended inflation pressure must be set by the installer. That inflation pressure must provide a load capacity equal to the load capacity the OE tires provided. Notations should be made in the vehicle owner's manual to reflect the new recommended inflation pressures. The installer has the option to develop and install an auxiliary tire placard with the new designated tire size and recommended inflation pressures. It should be affixedt adjacent to the original tire placard.
In the eyes of the tire industry, a tire designation different from the OE tire designation is a misapplication. In other words, if the OE tires are ST, the replacements should also be ST or another tire with a "trailer service only" designation.
Don't forget to register your new tires. If the name brand is not on this Tire Rack list just type the brand and tire registration in your search engine.
https://www.tirerack.com/tires/tiret...jsp?techid=171