Benzin Katalysator Reinigungs-Kur – Katalysator-Schutz 400 ml + Longlife BENZIN Pro-Line 500 ml im Set

This is a two-step maintenance and protection system for modern gasoline engines, including a 400 ml catalytic converter cleaner for preventive protection and a 500 ml Longlife Gasoline Pro-Line dosing bottle for ongoing maintenance at every refueling.

• The description claims to prevent expensive repairs to catalytic converters, oxygen sensors, and lambda sensors.