Before changing the automatic transmission fluid, add the contents of the can to the gear oil when it is at operating temperature through the dipstick opening using a funnel. allow the engine to run in neutral for approx. 10 minutes and shift through all gears at least twice with the vehicle in a stationary position. change the oil and filters after cleaning with the appropriate liqui moly gear oil. the contents of one 300 ml can are sufficient to treat 6-9 liters of oil. can also be used in all commercial automatic transmission cleaning devices. always observe the work instructions of the equipment manufacturer