Wheels/Tires - Tire Pressure Adjustment Information
SI M36 02 10
Wheels and Tires
October 2010
Technical Service
SUBJECT
Adjusting Tire Pressures
MODEL
All
INFORMATION
To ensure proper tire inflation pressures, it is recommended to check/inflate tires when they are cold. The tires of a vehicle are often thought of as
being cold prior to the vehicle being driven. However, ambient temperature can have an effect on tire pressure. For every 10锟斤拷F drop in ambient
temperature, the tire pressure can decrease by 1 psi. During the fall and winter months, there can be significant differences between the outside
temperature and the temperature within the workshop. Inflating tires within a heated environment can result in a pressure difference of up to 3 psi
when the vehicle is placed outside. Therefore, it is recommended to check/inflate tires prior to the vehicle being driven or placed in the workshop.
