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Wurth Diesel Treatment Additive AR 300ml

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£6.99 £6.64
Part Number: 5861006300

Wurth Diesel Treatment Additive AR 300ml

For lubricating passenger car and truck diesel systems.

Prevents deposits from building up in the combustion chamber and injection system

  • Improves the lubricating effect of low-sulphur fuels

Therefore prevents surface abrasion and prevents the risk of the injection system malfunctioning.

  • The storage stability of bio-diesel fuels is extended

Ensures precise diesel injection

  • Lower fuel consumption
  • Quiet engine running


Free from sulphur, phosphorous, metals and acids


300 ml is sufficient for 70 litres of diesel.

Application area

Compatible with all modern diesel oxidation catalytic converters. For all diesel engines with common rail and pump/nozzle technology.


Empty the contents of the can into the fuel tank. At least 10 litres of diesel should be in the tank to do this.

We recommend using every 2000 km and as a preventative measure after every repair performed on the injection system and engine.

Customer Reviews

Based on 4 reviews
Some things never change, a great product still and great delivery.

I used to work for Wurth so I know how great this product is. Even 8 years after leaving this product doesn't disappoint, the difference once it gosles through the system is noticeable on my 2009 Mondeo.

Great to see the quality of their products is still top notch and as for the actual delivery, it was spot on by the company and really well packed.

I'll be back again for more of this when I need it.

Lois Robinson
Great product

This hard to find item was recommended by a friend and this company was the cheapest - so I bought two! Fingers crossed it keeps my engine running smoothly.

Andrew Nightingale
Well priced arrived on time.

Have used Wurth diesel treatment before for quite injectors and improved fuel economy, as always well priced by Cox's.

Graham Knowles

It looks like it's working my car is do more miles per gallon

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