Protects valve seats when running on unleaded petrol. Improves start and full-load performance. Dissolves and disperses deposits and residues in petrol system. Provides smoother idling. Removes deposits on valves and in the combustion chamber and avoids recontamination. Increases the octane number up to 8 points. Improved engine performance and operational reliability. Protects valve seat from excessive wear. Ensures stable combustion process and an improved CO-value.