Proper tire inflation is essential to the safe and satisfactory operation of your vehicles. These pressures should be checked and adjusted at least once every month. Tire pressures should be checked more often when weather temperatures vary widely because tire pressures vary with outdoor temperatures.
Tire inflation pressures may increase from 2 to 6 pounds per square inch (PSI) during operation. Do NOT reduce this normal pressure build-up.
Inflation presures shown in the following charts are cold inflation pressures. COLD INFLATION PRESSURE CAN BE MEASURED AFTER THE VEHICLE HAS BEEN STATIONARY FOR AT LEAST 3 HOURS OR DRIVEN LESS THAN ONE MILE AFTER BEING INOPERATIVE FOR 3 HOURS.
The minimum tire size and rim size for your vehicle is listed on the safety certification label. The cold inflation pressure for these tires at full load operation is also listed.
The tire inflation pressure charts in these pages also show inflation pressures for Light Load conditions. These reduced inflation pressures are intended to improve ride and tire wear on vehicles which are commonly operated at or below the Light Load defined in the charts.
Always increase inflation pressures to the Full Load pressure before operating the vehicle at loads greater than the Light Load conditions.
Optionally available tire sizes use the Light Load and Full Load inflation pressures specified in the charts for the appropriate tire size.
For special operating conditions ... such as campers or other high center of gravity loading vehicles ... cold inflation pressures may be increased up to 10 PSI (69 kPa) with truck type tires.
Tire pressure adjustments are not necessary for operation up to 75 mph (120 km/h). While driving over the established speed limit is not advised or encouraged, those vehicles permitted to travel at high speed over 75 mph (120 km/h) musdt have the following adjustments:
For continuous high speed operation over 75 mph (120 km/h) increase tire inflation pressure 4 pounds per square inch over the recommened pressure, but not over the maximum values molded into the tire side wall.
Continuous speeds above 75 mph (120 km/h) are not recommended at vehicle loading conditions above that shown for "Light Load" in the chart.
For sustained driving over 65 mph (100 km/h) with truck type tires, cold inflation pressures must be increased 10 psi (69 kPa) above those specified in the charts for the load being carried.
Continous speeds above 75 mph (120 km/h) are not recommended at vehicle loading conditions above that shown for "Light Load" in the chart.
Truck type tires are not recommended for use at speeds over 85 mph (135 km/h).
If increased inflation pressures are used for both high speed operation and special operating conditions, the total increase must not exceed the maximum load inflation pressure, molding into the tire sidewall, by more than 10 psi (69 kPa)
The "GVWR" of your vehicle as manufactured is shown on the Safety Certification Label located on the driver's door pillar. The GVWR is the total permissible weight of your vehicle, including diver, passengers, vehicle bode and load. The Safety Certification Label also specifies the Gross Axle Weight Ratings (GAWR) of your vehicle. The GAWR is the toital permissible weight of the front and rear axle systems.
The actual overall weight and the weight of the front and rear of your vehicle at the ground, can best be determined seperately to be sure that the load is properly distributed over front and rear axles.
All Dodge trucks and full size vans, built for the U.S. Domestic Market, are equipped with Radial tires.
The following charts show the recommended cold inflation pressures at light and full load operation.