Fuel Saver Capacity: 60ml Type: Gasoline additive/Fuel Savings Additive Effect: Remove carbon deposits, Reduce wear and tear, Protect the engine, Reduce emissions, etc. Suitable For: Any Gasoline Fuel Car Steps: Add this product to the fuel tank before refueling, then add gasoline. 1 bottle of 60ml of this product can be added to about 30-60 liters of gasoline 1. You may add 1-2 bottles of 30-60 liters of gasoline (two bottles are recommended for the first use, then you may choose to add 1 or 2 bottles according to your self-driving comfort), after that may add 2 bottles of gasoline above 60 liters. 2. If you accidentally overdose, you dont have to worry as long as you add not more than 5 bottles (300ml) to a tank of fuel, and then continue to use the normal amount. After that, if dosage is too low, for example, lower than 50% of the recommended dosage, and it can still work, but the effect is limited. 3. If you are used to adding half tank of fuel, or do not fill up the full tank every time, it is recommended to have 1 bottle. 4. 6 times is a cycle, and 12 is an excellent service cycle. It is recommended to add 1 bottle before each refueling to keep the vehicle in good condition. 5. After the first addition, the carbon deposits will fall off. The first 3-5 tanks of oil are the process of removing carbon deposits and decomposing the colloid. After this process is completed, the fuel-saving effect will be more obvious. Long-term use can protect the engine. Due to carbon deposition and serious colloid shedding in old cars, the first use may cause poor oil circuit and abnormal engine jitter, which is a normal phenomenon. After 1-2 cycles of use, the oil circuit is cleaned and the effect will be improved.