2008 Subaru Tribeca Owner's Manual - Page 278

8-10 Driving tips wiper blades (winter blades) during the seasons you could have snow and subzero temperatures. Blades of this type give superior wiping performance in snowy conditions. Be sure to use blades that are suitable for your vehicle. CAUTION During high-speed driving, nonfreezing type wiper blades may not perform as well as standard wiper blades. If this happens, reduce the vehicle speed. NOTE When the season requiring non-freezing type wiper blades is over, replace them with standard wiper blades. & Corrosion protection Refer to the "Corrosion protection" section in chapter 10. & Snow tires WARNING . When replacing original tires with winter (snow) tires, make sure you use only the same size and construction as recommended. Using other sizes or construction may affect speedometer/odometer calibration and clearance between the body and tires. It also may be dangerous and lead to loss of vehicle control. . You must install four winter tires that are of the same size, circumferences, construction, brand, and load range. Mixing other sizes, circumferences or constructions may result in severe mechanical damage to the drive train of your vehicle and may affect ride, handling, braking and speedometer/odometer calibration. It also may be dangerous and lead to loss of vehicle control. . Do not use a combination of radial, belted bias or bias tires since it may cause dangerous handling characteristics and lead to an accident. Your vehicle is equipped with "all season tires" which are designed to provide an adequate measure of traction, handling and braking performance in year-round driving. In winter, it may be possible to enhance performance through use of tires designed specifically for winter driving conditions. If you choose to install winter tires on your vehicle, be sure to use the correct tire size and type. You must install four winter tires that are of the same size, construction, brand and load range and you should never mix radial, belted bias or bias tires since this may result in dangerous handling characteristics. When you choose a tire, make sure that there is enough clearance between the tire and vehicle body. Remember to drive with care at all times regardless of the type of tires on your vehicle. Your vehicle comes with P255/55R18 "all season tires" as original equipment. You should be aware that some winter tires with that same size designation may actually be too large for the vehicle and may cause rubbing on sharp turns. Listed in the following is the winter tire size that we recommend. Recommended winter (snow) tire size P255/55R18 stud less