Subaru Legacy Manuals 2018 Legacy Owner's Manual | Page 433

Maintenance and service/Tires and wheels . If you feel unusual vibration while driving or find it difficult to steer the vehicle in a straight line, one of the tires and/or wheels may be damaged. Drive slowly to the nearest authorized SUBARU dealer and have the vehicle inspected. & Tire pressures and wear S11AV04 Maintaining the correct tire pressures helps to maximize the tires’ service lives and is essential for good running perfor- mance. Check and, if necessary, adjust the pressure of each tire (including the spare) at least once a month (for example, during a fuel stop) and before any long journey. Check the tire pressures when the tires are cold. Use a pressure gauge to adjust the tire pressures to the values shown on the tire placard. The tire placard is located on the door pillar on the driver’s side. 11-25 Incorrect tire pressures detract from con- trollability and ride comfort, and they cause the tires to wear abnormally. . Correctly inflated tires (tread worn evenly) Driving even a short distance warms up the tires and increases the tire pressures. Also, the tire pressures are affected by the outside temperature. It is best to check tire pressure outdoors before driving the ve- hicle. When a tire becomes warm, the air inside it expands, causing the tire pressure to increase. Be careful not to mistakenly release air from a warm tire to reduce its pressure. NOTE . The air pressure in a tire increases by approximately 4.3 psi (30 kPa, 0.3 kgf/cm 2 ) when the tire becomes warm. . The tires are considered cold when the vehicle has been parked for at least 3 hours or has been driven less than 1 mile (1.6 km). Roadholding is good, and steering is responsive. Rolling resistance is low, so fuel consumption is also lower. WARNING Tire placard Do not let air out of warm tires to adjust pressure. Doing so will result in low tire pressure. – CONTINUED –