Clean all dirt from around cover on master cylinder before removing. Fill unit to level specified by manufacturer. Replace cover. Check fluid level once a month. To Bleed System: Refer to service manual. Do not reuse break fluid from bleeding operation. Caution: Never wash cylinders or parts with gasoline, kerosene or oil. Avoid spilling break fluid or break lining or car finish. Follow vehicle manufacturer's recommendations. Keep break fluid clean and dry. Contamination with dirt, water, petroleum products or other materials may result in break failure or costly repairs. Store break fluid only in its original container. Keep container clean and tightly closed to prevent absorption of moisture. Caution: Do not refill container and do not use for other liquids.