Purpose and Specifications

LIQUI MOLY 21281 Pro-Line Direct Injection Cleaner is a premium fuel system additive designed specifically for modern direct injection gasoline engines, including Opel models with OEM numbers 95527846, 95527847, and 95599923. This 120ml bottle uses advanced polyetheramine (PEA) technology to powerfully clean fuel injectors, intake valves, pistons, and combustion chambers, restoring lost power and preventing low-speed pre-ignition (LSPI) damage.

It tackles deposits that build up within 5,000-10,000 miles (8,000-16,000 km), ensuring smooth throttle response, better fuel atomization, and cleaner burning for improved performance and efficiency. Compatible with all gasoline fuels, it mixes automatically and works in engines operating from cold starts up to high-heat conditions over 200°C.

• Key Benefits: Removes stubborn deposits for full injector spray pattern, reduces risk of engine knock, protects against fuel quality issues
• Volume: 120ml - treats 30-50 liters of fuel
• Shelf Life: 4 years unopened when stored cool and dry

When to Use / Replace?

Add every 5,000 km (3,000 miles) or sooner if you notice rough idling, hesitation, or reduced acceleration. Ideal for preventive maintenance in direct injection engines prone to carbon buildup. Replace at each recommended interval to maintain peak performance; one 120ml can per treatment.

Suitable for daily drivers and high-mileage vehicles. Use before major trips or after filling with lower-quality fuel.

FAQ

Q: Can I use this in any gasoline engine?
A: Yes, it's safe for all direct and port injection gasoline engines, but optimized for modern multi-valve, lean-burn systems like those in Opel vehicles.

Q: How soon do I see results?
A: Notice smoother running and better response after one full tank; full cleaning effect builds over 200-500 km.

Q: Is it safe for catalytic converters and sensors?
A: Absolutely - ashless formula leaves no harmful residues, protecting emissions systems.