2009 Chrysler Town & Country Owner Manual - Page 377

STARTING AND OPERATING 375 SNOW TIRES Some areas of the country require the use of snow tires during Winter. Standard tires are of the all-season type and satisfy this requirement as indicated by the M+S designation on the tire sidewall. If you need snow tires, select tires equivalent in size and type to the original equipment tires. Use snow tires only These effects can be reduced by timely rotation of tires. in sets of four; failure to do so may adversely affect the The benefits of rotation are especially worthwhile with safety and handling of your vehicle. aggressive tread designs such as those on All-Season type tires. Rotation will increase tread life, help to maintain Snow tires generally have lower speed ratings than what mud, snow, and wet traction levels, and contribute to a was originally equipped with your vehicle and should smooth, quiet ride. not be operated at sustained speeds over 75 mph (120 km/h). Refer to the "Maintenance Schedule" in Section 8 for the proper maintenance intervals. More frequent rotation is permissible if desired. The reasons for any rapid or unusual wear should be corrected prior to rotation being performed. TIRE ROTATION Tires on the front and rear axles of vehicles operate at different loads and perform different steering, driving, and braking functions. For these reasons, they wear at unequal rates, and tend to develop irregular wear patterns. 5