Subaru Forester Manuals 2017 Forester Owner's Manual | Page 562

Maintenance and service/Windshield washer fluid Windshield washer fluid warning light (type B) When there is only a small amount of washer fluid remaining, the windshield washer fluid warning light will illuminate. When this occurs, refill the washer fluid as follows. Remove the washer tank filler cap, then add windshield washer fluid until it reaches the “FULL” mark on the tank. If windshield washer fluid is unavailable use clean water. In areas where water freezes in winter, use an anti-freeze 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 in the following table. 11-31 Washer Fluid Concentration Freezing Temperature 30% 10.48F (−128C) 50% −48F (−208C) 100% −498F (−458C) In order to prevent freezing of washer fluid, check the freezing temperatures in the table above when adjusting the fluid