
Liqui Moly
Liqui Moly 1804 Radiator Cleaner Flush - (300ml)
Reviewed byOrganicDiscount TeamUpdated 4 Jun 2026
Best price available
£8.99
Key features
- 300 ml is sufficient for 10 l of coolant (dosage 1:33)
- Compatible with all conventional coolant additives and antifreezes (with the exception of “low conductivity” coolants)
- The content (300 ml) is sufficient for 10 l of coolant (dosage 1:33)
Product Overview
Deposits in the cooling/heating system create blockages for heat exchange and they also block thermostat valves and control mechanisms. When engine temperatures are too high, the engine runs uneconomically and suffers excessive wear at considerable risk of damage. Radiator Cleaner removes deposits containing oil and lime and ensures that the engine runs reliably and at the optimum temperature.
Does not contain aggressive acids or alkalis. For all coolant and heating systems in water-cooled engines. 300 ml is sufficient for 10 l of coolant (dosage 1:33).

Compatible with all conventional coolant additives and antifreezes (with the exception of “low conductivity” coolants). Key Benefits: Disperses sludge Does not contain acids or alkali Removes oil and greasy residue Chemical conversion of lime Neutralizes acids Neutral behaviour on rubber and plastics Compatible with antifreeze Areas of application: For all coolant circuits in water-cooled engines (withthe exception of “low conductivity” coolants). Application: Add contents to the cooling water.
Then start up the heater and, depending on the level of contamination, let the engine run at operating temperature for 10 – 30 min. After finishing cleaning, drain the coolant/cleaner mixture, thoroughly flush the cooling system with water and refill it according to the manufacturer’s instructions. The content (300 ml) is sufficient for 10 l of coolant (dosage 1:33).
Technical data:Form - liquidColour / appearance -white, light unclearHazard class as per German VbF - nonepH value - ~8,7Solubility in water - SolubleOdor - CharacteristicDensity at 20 °C - 1,015 g/cm³
Pros & Cons
Pros
- In stock and ready to ship
- 300 ml is sufficient for 10 l of coolant (dosage 1:33)
- Compatible with all conventional coolant additives and antifreezes (with the exception
Cons
- Currently sold by only one merchant — limited price competition
- No customer reviews yet
- Price history not yet established
Price Analysis
Fair Price
The current price is around the average. It's a reasonable time to buy.
Current Best
£8.99
Average Price
£8.99
Lowest Ever
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Highest Ever
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Compare Prices (1 merchant)
Compare prices for Liqui Moly 1804 Radiator Cleaner Flush - (300ml)
| Merchant | Price | Shipping | Total | Status | |
|---|---|---|---|---|---|
Al All Oils Best Price | £8.99 | — | £8.99 | In Stock | Go to Store |
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Product Details
| Brand | Liqui Moly |
| Category | Vehicle Parts & Accessories |
| Merchant | All Oils |
| GTIN | 4100420018046 |
| MPN | LM1804 |
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