Dick_B wrote:
When such questions arise I often wonder how does the door sticker know what tires are on the vehicle if the OEM tires have been replaced by another make/model tire?
It knows because the tire size is listed there as well, and the load carrying capacity for a given size is standardized by the tire standardizing organizations, such as the Tire and Rim Association. Every tire manufacturer agrees to those standards, so it doesn't matter who makes the tire or where it is made.
But change tire size and the pressure value has to be recalculated.
Oh, and the letters on a tire are part of the *size*. An LT tire is different than a P type tire, and even though the numbers may be the same, the pressures would be different (by 15 psi)