INTRO SPECIAL! Lubro Moly Diesel hi test fuel additive. Formulated for the new low sulfur diesel fuel. Contains an additive against injection pump and injector wear. Keeps the injection system clean. Provides clean, low smoke combustion. Regular use guarantees lowest exhaust emission levels. If you are running petrol diesel it is a must to be using a fuel additive in the older Mercedes diesels. Sold per can, treats 20 gallons.