Liqui Moly Lead Substitute is a specially formulated fuel additive designed for engines originally built to run on leaded petrol and fitted with non-hardened valve seats. This advanced additive allows these engines to be safely converted for use with modern unleaded fuels, without compromising engine protection or performance. The product provides excellent valve seat lubrication, preventing excessive wear while also cleaning the fuel system, intake valves, and combustion chamber. Its advanced formulation improves combustion efficiency and helps reduce harmful exhaust emissions, making it a more environmentally responsible solution. Liqui Moly Lead Substitute contains no organometallic compounds, making it safe for engines equipped with catalytic converters. It is easy to use, highly economical, and ideal for classic cars, vintage vehicles, and older engines requiring lead replacement protection.

• Designed for engines with non-hardened valve seats
• Allows safe use of unleaded fuel in older engines
• Provides excellent valve and valve-seat protection
• Cleans the mixture preparation system and combustion chamber
• Reduces engine wear and improves longevity
• Safe for catalytic converters
• Free from harmful organometallic compounds
• Easy to use and highly economical