This bulletin supersedes all prior Toyo publications related to tire inflation for multipurpose passenger vehicles, including recreational vehicles. The purpose of this bulletin is to disseminate Toyo's recommendation and policy regarding inflation and tire maintenance of original equipment tires and direct replacement tires (same size and load range) on multipurpose passenger vehicles.
For the purpose of this bulletin, multipurpose passenger vehicles include all vehicles equipped with LT designated tires or medium duty truck tires. Multipurpose passenger vehicles include recreational vehicles (including class A, C, and B RVs), busses, and EMS (emergency medical service) vehicles.
Inflation of Original Equipment Tires on Multipurpose Passenger Vehicles:
Toyo's policy is to maintain the pressure specified on the vehicle's tire information placard (certification label) as established by the vehicle manufacturer or final stage manufacturer.
Replacement tires must also be capable of supporting no less than the vehicle's GAWR (per axle). Tire Inflation and GAWR Information:
The vehicle's tire information placard (certification label) includes information regarding the tire size, inflation, GAWR and other information. The tire information placard is usually located on the driver's door hinge pillar,door latch post, or the door edge. In RVs the tire information placard is placed on the bulkhead at the left of the driver's seating position.
Example – Tire Information Placard (Certification label):
