LIQUI MOLY Pro-Line Diesel System Cleaner 16.9oz

LIQUI MOLY Pro-Line Diesel System Cleaner — 16.9 oz (500 ml)

Restore peak diesel engine performance with LIQUI MOLY Pro-Line Diesel System Cleaner — a professional-grade fuel system additive engineered to deep-clean injectors, combustion chambers, and the entire diesel fuel system in a single treatment.

What It Does

• Cleans diesel injectors — removes carbon deposits and varnish buildup that reduce spray precision and fuel atomization
• Restores combustion efficiency — cleans the combustion chamber for more complete fuel burn and better power output
• Improves fuel atomization — ensures optimal spray pattern for smoother idle and throttle response
• Reduces fuel consumption — a clean fuel system burns fuel more efficiently, lowering operating costs
• Lowers exhaust emissions — helps your diesel meet emissions standards by reducing unburned fuel byproducts
• Protects against future deposits — regular use prevents buildup and extends injector life

How to Use

1. Add the entire 16.9 oz bottle to your diesel fuel tank before filling up
2. Mixes automatically with fuel — no special tools required
3. Use as a problem solver for rough idle, hard starts, or power loss
4. Use at every oil change interval for preventive maintenance

Compatible With

All diesel engines including common-rail, pump-nozzle (PD), and indirect injection systems. Safe for use with diesel particulate filters (DPF) and catalytic converters.

Why LIQUI MOLY Pro-Line?

LIQUI MOLY is a German-engineered brand trusted by professional mechanics and automotive enthusiasts worldwide. The Pro-Line series is formulated for maximum concentration and effectiveness — delivering workshop-grade results you can use at home.