2003 Subaru Impreza Owner's Manual - Page 379

Maintenance and service Aluminum wheels (If equipped) Aluminum wheels can be scratched and damaged easily. Handle them carefully to maintain their appearance, performance, and safety. D When any of the wheels is removed and replaced for tire rotation or to change a flat, always check the tightness of the wheel nuts after driving approximately 600 miles (1,000 km). If any nut is loose, tighten it to the specified torque. D Never apply oil to the threaded parts, wheel nuts, or tapered surface of the wheel. D Never let the wheel rub against sharp protrusions or curbs. D Be sure to fit tire chains on uniformly and completely around the tire, otherwise the chains may scratch the wheel. D When wheel nuts, balance weights, or the center cap is replaced, be sure to replace them with genuine SUBARU parts designed for aluminum wheels. Windshield washer fluid Check the level of the washer fluid at each fuel stop. If the level is low, fill the fluid up to the neck of the reservoir. Use windshield washer fluid. If windshield washer fluid is unavailable use clean water. In areas where water freezes in winter, use an antifreeze type windshield washer fluid. SUBARU Windshield Washer Fluid contains 58.5% methyl alcohol and 41.5% surfactant, by volume. Its freezing temperature varies according to how much it is diluted, as indicated below. 11-50