2009 Subaru Legacy Owner's Manual - Page 380

11-30 Maintenance and service . Never splash the clutch fluid over painted surfaces or rubber parts. Alcohol contained in the clutch fluid may damage them. . Be careful not to spill clutch fluid when adding it. If clutch fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If clutch fluid gets on the exhaust pipe, be sure to wipe it off. & Recommended clutch fluid FMVSS No. 116, fresh DOT 3 or 4 brake fluid Brake booster If the brake booster does not operate as described in the following procedure, have it checked by your SUBARU dealer. 1. With the engine off, depress the brake pedal several times, applying the same pedal force each time. The distance the pedal travels should not vary. 2. With the brake pedal depressed, start the engine. The pedal should move slightly down to the floor. 3. With the brake pedal depressed, stop the engine and keep the pedal depressed for 30 seconds. The pedal height should not change. 4. Start the engine again and run for approximately 1 minute then turn it off. Depress the brake pedal several times to check the brake booster. The brake booster operates properly if the pedal stroke decreases with each depression. CAUTION Avoid mixing DOT 3 and DOT 4 brake fluids even if they are of the same brand. 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.