Würth Engine Flush & Cleaner is a professional 400ml internal engine cleaning treatment designed to clean the engine oil circuit before an oil and filter change.
Added directly to the existing engine oil before servicing, the cleaner circulates through the lubrication system to help loosen and remove deposits, sludge and contamination from oil-bearing components. Würth specifies it for petrol and diesel engines using suitable mineral or synthetic-based engine oils.
Product Specifications
- Brand: Würth
- Würth article number: 5861312400
- Product type: Engine flush / internal engine cleaner
- Contents: 400ml
- Quantity supplied: 1 container
- Suitable engines: Petrol and diesel
- Oil compatibility: Suitable mineral and synthetic-based engine oils
- Treatment capacity: 400ml treats up to approximately 5 litres of engine oil
- Chemical basis: Aliphatic hydrocarbon
- Fragrance: Characteristic
- Shelf life from production: 24 months
Key Features
- Cleans the inside of the engine and oil circulation system
- Helps loosen deposits and contamination within the lubrication system
- Helps release deposits around piston rings
- Quick and gentle cleaning action
- Designed not to attack engine seals when used correctly
- Compatible with catalytic converters
- Suitable for petrol and diesel engines
- Suitable for use before a routine engine oil and filter change
Typical Uses
- Engine oil and filter servicing
- Cleaning internal oil galleries and lubrication passages
- Removing accumulated deposits before filling with fresh engine oil
- Helping free piston rings affected by deposit build-up
- Preventative engine maintenance
How to Use
Bring the engine to normal operating temperature, then add the Engine Flush & Cleaner to the existing engine oil. Allow the engine to idle for approximately 10 minutes. Switch off the engine and immediately carry out the engine oil and oil-filter change in accordance with the vehicle manufacturer's servicing procedure.
One 400ml container is sufficient for an engine containing up to approximately 5 litres of oil.
Important Application Note
Do not drive the vehicle while the engine flush is in the oil. Use the product only immediately before an oil change and replace both the engine oil and oil filter afterwards. Würth advises that the product is not suitable for motorcycles with an oil-bath clutch sharing the same oil circuit.
What's in the Box?
- 1 x Würth Engine Flush & Cleaner 400ml
Why Würth?
Würth supplies professional automotive chemicals and workshop consumables developed for demanding service and repair environments. Engine Flush & Cleaner provides a straightforward way to clean the internal lubrication system immediately before an oil change, helping remove accumulated deposits so the fresh engine oil starts service in a cleaner system.
| Model | Generation (Mk) | Sub-variant | Year Range | Engine | Transmission |
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No specific vehicle compatibility – universal workshop / maintenance product.
| Manufacturer | OE / Reference Number |
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No applicable vehicle manufacturer OE reference – universal workshop / maintenance product.