Tire Pressure question for Luke

[oldsouth]

I have been running the Michelin X-One in size 235/60-16 at the max pressure of 35 psi. I am looking at the new HydroEdge tire and noticed that the maximum pressure for the stated load is 44 psi. My question is - Does it require 44 psi to carry the stated load and what percent of max load or what load will the tire carry at 35 psi?

[Luke@tirerack]

use the pressure recommended by the placard on the b-pillar ..... but, you can alter from that to tune the ride quality and steering response to your personal driving preferences .... I seldom if ever inflate my tires to the maximum tire pressure listed on the tire

[oldsouth]

I'm sorry, that did not answer my question. If one tire is rated at 1709 lbs load at 35 psi and another rated at 1709 lbs load at 44 psi; question is: what is the load that the second tire will carry at 35 psi.
I run truck tires in size 11R24.5 and Michelin makes a chart that shows the load that the tire will carry at pressures ranging from 75 psi to 120 psi. I cannot find one on passenger tires.
The new HydroEdge tire is a 44 psi tire. The old X-One is a 35 psi tire. My size is 235/60-16.

[Luke@tirerack]

car tires and truck tires are different so, the way you are considering load rating is incorrect ...


maximum load capacity of a tire is achieved at 35 psi for a p-metric tire and 36 psi for a Euro-metric tire .... not at the maximum pressure.

[oldsouth]

Thanks Luke, that is the answer I was looking for. One other question, how do you tell the difference between a P metric and a euro metric tire. Specifically MXV4 plus in 235/60-16 --- is this a euro metric tire? I take it that the HydroEdge is a p metric tire.