TYPE OF USE: Before each oil drain, add one can of MOTUL ENGINE CLEAN to the hot used oil in the engine oil compartment. Let the engine idle for 15 minutes. Drain the oil, and change the oil filter.; The content of one can is sufficient for an oil capacity up to 5L. For higher capacities, 60ml of MOTUL ENGINE CLEAN is to be added per additional liter of engine oil (over 5 liters). Do not exceed the recommended proportion. If necessary, proceed with 2 successive treatments.