2007 Subaru Impreza Owner's Manual - Page 326

11-34 Maintenance and service . Correct tire pressure (tread worn evenly) . Abnormally low tire pressure (tread worn at shoulders) . Abnormally high tire pressure (tread worn in center) Roadholding is good, and steering is responsive. Rolling resistance is low, so fuel consumption is also lower. Rolling resistance is high, so fuel consumption is also higher. Ride comfort is poor. Also, the tire magnifies the effects of road-surface bumps and dips, possibly resulting in vehicle damage. If the tire placard shows tire pressures for the vehicle when fully loaded, adjust the tire pressures to the values that match current loading conditions. WARNING Driving at high speeds with excessively low tire pressures can cause the tires to deform severely and to rapidly become hot. A sharp increase in temperature could cause tread separation, and destruction of