2012 Subaru Forester Owner's Manual - Page 446

11-24 Maintenance and service clean water. For safety, wearing eye protection is advisable. . Brake fluid absorbs moisture from the air. Any absorbed moisture can cause a dangerous loss of braking performance. . If the vehicle requires frequent refilling, there may be a leak. If you suspect a problem, have the vehicle checked at your SUBARU dealer. & Recommended brake fluid Refer to "Fluids" F12-9. Clutch fluid (MT models) & Checking the fluid level CAUTION Never use different brands of brake fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand. CAUTION . When adding brake fluid, be careful not to allow any dirt into the reservoir. . Never splash the brake fluid over painted surfaces or rubber parts. Alcohol contained in the brake fluid may damage them. . Be careful not to spill brake fluid when adding it. If brake fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If brake fluid gets on the exhaust pipe, be sure to wipe it off. Check the fluid level on the outside of the reservoir. If the level is below "MIN" level mark, add the recommended clutch fluid to "MAX" level mark. Use only clutch fluid from a sealed container.