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1804 Radiator Cleaner - 300 ml

Q: do you have to flush after ? Or can you just leave in?

You rinse the cooling system with water, flush it out, then refill

Q: how large a radiator does this product clean?

It is based in total coolant volume. If your vehicle's coolant capacity is higher than the recommended maximum dilution quantity, you will need to purchase another.

Q: Is this a 10 minute flush or does it stay in longer?

Follow the instructions on the bottle. It is not recommended to drive with it in nor have multiple engine on/off cycles. Letting the car idle at least 10-15 minutes will not hurt the system, but do not be excessive.

Product ID: 633521887

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Details

Brand
Liqui Moly
Specific Uses For Product
Engine
Item Volume
300
Net Quantity
1.0 Count
Surface Recommendation
Metal
Special Feature
Non Abrasive

💧300ml treats up to 10L coolant

🧪Acid-neutralizing formula

⚙️Compatible with all cooling & heating systems

Frequently Bought Together

Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051

Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037

LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue

Description

❄️ Keep your engine chill with the cleaner that means business!

OPTIMAL DOSAGE - 300ml bottle efficiently treats up to 10 liters of cooling water, maximizing value and performance.
GENTLE YET POWERFUL - Non-abrasive, acid-neutralizing cleaner protects your radiator without harsh chemicals.
MAINTENANCE MADE EASY - No assembly required—just add and let it work, keeping your engine cool and worry-free.
UNIVERSAL COMPATIBILITY - Works seamlessly with all cooling and heating systems—one solution for every vehicle.
GERMAN ENGINEERING EXCELLENCE - Crafted by Liqui Moly, a trusted brand known for precision and reliability.

The 1804 Radiator Cleaner by Liqui Moly is a 300ml acid-neutralizing, non-abrasive additive designed to clean and protect all types of vehicle cooling and heating systems. Made in Germany, this powerful yet gentle formula treats up to 10 liters of coolant, ensuring optimal radiator performance and longevity without harsh chemicals.

Specifications

Manufacturer	Liqui Moly
Brand	Liqui Moly
Item model number	2051
Manufacturer Part Number	2051
Volume	300 Millilitres
Assembly Required	No
Special Features	Non Abrasive
Manufacturer	Liqui Moly
Country of Origin	Germany
Item Weight	249 g

Have a Question? See What Others Asked

do you have to flush after ? Or can you just leave in?

Can this be used with aluium rad

how large a radiator does this product clean?

Is this a 10 minute flush or does it stay in longer?

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