Liqui Moly Petrol System Cleaner 500 ml — Cleans Injectors, Restores Starting & Idle

Liqui Moly Truck Series Complete Gasoline System Cleaner is a 500 ml petrol additive that cleans injectors, intake valves, spark plugs and combustion chambers to restore smooth starting and steady running.

This concentrated fuel-system treatment is formulated for gasoline engines to dissolve deposits, optimize fuel atomization and protect metal components from corrosion. It is designed for periodic maintenance or to address symptoms like poor starting, rough idling or reduced fuel economy. Use as directed in the fuel tank to treat the entire injection system without disassembly.

How does this additive improve engine starting and idling?

By removing varnish and carbon buildup from injectors, intake ports and spark plugs, the product helps the engine receive and ignite a more consistent air–fuel mixture. That leads to more reliable cold starts and steadier idle speed.

• Solvent action dissolves deposits on injectors and valve seats
• Restores uniform spray pattern for better fuel atomization
• Clears combustion-chamber deposits that hinder ignition

Will this protect the fuel system from corrosion and new deposits?

Yes. In addition to cleaning, the formulation includes anti-corrosion agents and deposit inhibitors that cling to metal surfaces and help prevent fresh buildup. Regular use keeps lubrication and protection balanced across the fuel system.

• Corrosion inhibitors form a protective layer inside lines and injectors
• Deposit blockers reduce re-accumulation after treatment
• Compatible with common petrol system materials when used as instructed

How does cleaning the fuel system affect emissions and fuel economy?

Cleaner injectors and combustion chambers produce a more efficient burn, which can lead to improved fuel consumption and more consistent exhaust characteristics. While results vary with engine condition, many users observe smoother performance and normalized emission readings after treatment.

• Improves fuel atomization for more complete combustion
• Reduces misfires and incomplete burns that raise emissions
• Can help restore factory-like fuel compensation settings

How should I use the 500 ml bottle and how often?

The 500 ml dose treats a full tank according to the product directions—add directly to the fuel tank before refueling. Frequency depends on driving conditions and mileage; periodic use during scheduled maintenance keeps the system clean and protected.

• Add the entire bottle to a nearly full tank for best dilution
• Use every few thousand kilometers or during service intervals as preventive care
• Follow vehicle manufacturer recommendations and the product label

Who is this for: Liqui Moly Truck Series Complete Gasoline System Cleaner is aimed at owners and technicians of petrol-powered cars, light trucks and commercial vehicles who want a maintenance-grade additive to remove deposits, protect fuel-system components and help recover smoother running and consistent emissions values. It is suitable for routine preventative service or targeted treatment when starting, idling or fuel-economy problems appear. Always read the label and vehicle handbook before use.