reducing tire pressure when unloaded

CALandLIN wrote:

Road Phantom wrote:
Mostly, we drive our truck unloaded, since it's our everyday beater as well. Our truck is a Ram 2500 reg cab 4X4. How low can I safely lower the air pressure to improve the ride for my arthritic wife?

There is an industry-wide inflation pressure warning that describes any tire found with an inflation pressure 20% below vehicle manufacturer recommendations to be in a "run flat" condition.

A lot of trucks only have inflation info for fully loaded. One has to use a little common sense and look at the inflation table and inflation the rears to the actual load plus a little margin. Handling and braking are reduced with tires inflated for full load when the truck is running light.

Chris