AdBlue costs roughly £1.50–£2.00 per litre in small retail bottles, around £0.80–£1.20 per litre at forecourt pumps, and as little as £0.50–£0.80 per litre when bought in bulk 10–20 litre containers. All AdBlue sold in the UK meets the same ISO 22241 standard regardless of brand or price.

AdBlue & DPF Buying AdBlue

How much is AdBlue?

CheckFuelPrices Editorial Expert Written • 4 industry sources

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AdBlue typically costs between £1 and £2 per litre in small retail bottles, falling to under £1 per litre when bought in larger containers or at forecourt pumps. Where you buy it makes a significant difference to what you pay.

Typical AdBlue Prices by Purchase Method

Small bottles (1.5–5 litres): Retail bottles from petrol stations or motor factors cost roughly £1.50–£2.00 per litre. Convenience comes at a premium, so this is the most expensive way to buy. 2

Forecourt pumps: Many larger petrol stations and motorway services have dedicated AdBlue pumps, typically priced at £0.80–£1.20 per litre — a cheaper option for a quick top-up. 3

Bulk containers (10–20 litres): Buying a 10–20 litre drum from a motor factor, supermarket, or online retailer usually works out at £0.50–£0.80 per litre, making it the best value for regular users. 2

What Affects the Price You Pay

Location markup: Motorway services typically charge more for AdBlue than supermarkets or independent filling stations. Prices can vary by 50% or more for the same volume. 1

Brand vs. own-label: All AdBlue sold in the UK must meet the ISO 22241 standard, so own-label products are chemically identical to branded versions. Paying more for a brand name offers no technical benefit. 3

Consumption rate: Most diesel cars use roughly 1 litre of AdBlue per 600–1,000 miles, so annual spend varies. A driver covering 12,000 miles could use 12–20 litres per year. 2

Why Getting AdBlue Right Matters

Running out has consequences: If your AdBlue tank empties, many modern diesel vehicles will refuse to restart after switching off. Do not ignore the low-level warning light. 3

Emissions compliance: AdBlue is essential for SCR (Selective Catalytic Reduction) systems that reduce harmful NOx emissions. Vehicles without a functioning system can fail an MOT emissions test. 4

Finding the Cheapest AdBlue Near You

Compare forecourt prices: Supermarket filling stations and large independents often stock AdBlue at competitive prices. Use CheckFuelPrices to locate nearby stations and compare costs before you drive. 1

Plan ahead to avoid motorway prices: Filling up at a local forecourt rather than a motorway service area can save you 30–50% on the same volume of AdBlue. 1