£74.85

This is the most expensive it has ever been. Walk away.

£75 today · previous high £75 · all-time low £45

Liqui Moly DEF Anti Crystal Additive Concentrate 2.5 L

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 41 days · 41 data points (no recent data)

Historical
Generating forecast…
£74.85 £41.75 £48.97 £56.19 £63.42 £70.64 £77.86 19 July 2026 29 July 2026 08 August 2026 18 August 2026 28 August 2026
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Clear, 21800

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Price Distribution

Price distribution over 41 days • 3 price levels

Days at Price
Current Price
13 days 15 days 13 days · current 0 4 8 11 15 £45 £54 £75 Days at Price

Price Analysis

Most common price: £54 (15 days, 36.6%)

Price range: £45 - £75

Price levels: 3 different prices over 41 days

Description
Maintain your diesel engine efficiency with Liqui Moly DEF Anti Crystal Additive Concentrate. This 2.5 L solution is specifically designed to optimize the return flow within your system, which helps minimize the risk of AdBlue crystallization. By using an ash-free combination of additives, this concentrate provides a reliable way to protect your diesel engine components. It is a professional-grade additive from Liqui Moly, a brand known for high-quality automotive fluids. This product helps ensure your diesel system operates smoothly by addressing crystallization concerns directly.

Key Features

Liqui Moly DEF Anti Crystal Additive Concentrate comes in a 2.5 L size for extended use in diesel engines.

The ash-free combination of additives helps maintain system cleanliness while providing effective protection.

This concentrate optimizes the return flow to help minimize the risk of AdBlue crystallization.

Designed specifically for diesel engines, this additive helps prevent common crystallization issues.

Liqui Moly item number 21800 ensures you are receiving the correct professional formula.

Product Specifications
Brand
Liqui Moly
Model
21800
Colour
Clear
ASIN
B0CSKTGJMT
Category
Automotive > Oils & Fluids > Additives > Fuel Systems > Diesel Additives
Domain
Amazon UK
Listed Since
01 January 2011

Barcode

No barcode data available

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