Capacity: 50 ml. It is a Engine Oil Saver. Treatment to the crank case along with new Engine Oil for improved performance. Engine oil saver + treatment -- 250 ml directions: 1. Warm the engine to running temperature by running it at idle speed for approx. 5 minutes. 2. Stop the engine. 3. With the engine off, add waxpol engine oil saver + treatment to the crank case along with: A. New engine oil for improved performance b. Old engine oil to restore performance. 4. Check oil level. Add or remove oil as necessary dosage: Add full can to 5 liters engine oil to get best result or 50 ml per liter of engine oil.