Würth Oil Smoke Stop
Würth Oil Smoke Stop
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Key Features
- Reduces blue exhaust smoke in petrol and diesel engines by stabilising oil viscosity.
- Helps lower oil consumption by compensating for viscosity loss in worn engines.
- Improves engine performance by reducing oil burn-off during combustion.
- Compatible with all commercially available engine oils.
- Easy-to-use - 300ml treats up to 5 litres of engine oil.
- Can be added at any time during engine operation.

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Shipping Information
Shipping Information
What Are My Shipping Options?
In-Store Pickup
In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00.
An email confirmation will be sent when your order is ready for collection.
Free Shipping
We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.
Shipping Fees
We also offer shipping at the following rates:
Standard-Size Parcel
Standard (UK Only) - 2-3 Days - £2.99
Express (UK Only) - 1-2 Days - £4.99
International (EU) - 3-7 Days - £14.99
International (ROW) - 5-10+ Days -£23.99
Large Parcel
Standard (UK Only) - 2-3 Days - £2.99
Express (UK Only) - 1-2 Days - £4.99
International (EU) - 3-7 Days - £14.99
International (ROW) - 5-10+ Days - £69.99
Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.
International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.
International orders to the rest of the world will normally be sent with DPD or UPS.
Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.
Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.
Dispatch Times
Orders placed before 15:00 Monday - Friday will be shipped on the same day.
Orders placed after this time will be shipped on the following business day,
Please note, we are closed at weekends, as well as English Bank Holidays.
Returns Policy
Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.
Further Information
You can contact us for further information on our shipping policies using the following:
Phone: 01953 711 881
Email: sales@esupplyline.com
Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.
Contact Form: https://esupplyline.com/pages/contact
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Description
Reduce Exhaust Smoke and Oil Consumption
Würth Oil Smoke Stop is a specially formulated oil additive designed to reduce blue smoke emissions from the exhaust, a common symptom of oil entering the combustion chamber. By stabilising and thickening engine oil viscosity, the additive minimises oil consumption, helping engines run cleaner and more efficiently.
Protects Engines from Wear
Excessive oil consumption not only increases smoke but can also lead to higher fuel usage and reduced lubrication. Oil Smoke Stop works by restoring oil film stability, reducing the rate at which oil enters the combustion process. This prolongs engine life and helps restore reliable performance.
Universal Application
Suitable for use in all petrol and diesel engines, the additive can be mixed with mineral and synthetic oils and is compatible with modern day engine technologies.
More Information
Application Instructions
- Shake well before use.
- Add the entire 300ml can to the engine oil. One can treats up to 5L of oil.
- After adding, run the engine until it reaches normal operating temperature.
- Product can be added at any time, either between oil changes or during regular maintenance.
Usage Notes
- Not suitable for motorcycles or quad bikes with wet clutch systems.
- For best results, use as part of routine maintenance, particularly in engines with high mileage or noticeable oil consumption.
- Always follow vehicle manufacturer recommendations on oil capacity and maintenance intervals.
Specifications
Chemical Basis: Combination of additives
Colour: Light brown
Fragrance: Characteristic
Contents: 300 ml
Density: 0.893 g/cm³ (at 20 °C)
Flash Point: ≥ 101 °C
Shelf Life: 60 months from production (store in a cool, dry place)