Volvo 2006 S60 Manual page 78

Tire wear increases with speed.
Correct front wheel alignment is very important.
Unbalanced wheels impair tire economy and driving comfort.
Tires must maintain the same direction of rotation throughout their lifetime.
When replacing tires, the tires with the most tread should be mounted on the rear wheels to reduce the chance of
oversteer during hard braking.
Hitting curbs or potholes can damage the tires and/or wheels permanently.
pg. 114 Wheels and tires
Tire inflation
Check tire inflation pressure regularly. A table listing the recommended inflation pressure for your vehicle can be
found on page 116. Tire inflation pressure placards are also located on the driver's side B-pillar (the structural member
at the side of the vehicle, at the rear of the driver's door opening), or on the inside of the fuel filler door on Canadian
models. These placards indicate the designation of the factory-mounted tires on your vehicle, as well as load limits and
inflation pressure.
NOTE: The placards shown indicate inflation pressure for the tires installed on the car at the factory only.
Use a tire gauge to check the tire inflation pressure, including the spare, at least once a month and before long trips.
You are strongly urged to buy a reliable tire pressure gauge, as automatic service station gauges may be inaccurate.
Use the recommended cold inflation pressure for optimum tire performance and wear.
Under-inflation or over-inflation may cause uneven treadwear patterns.
WARNING!
Tire inflation placards on US models
Tire inflation placard on Canadian models