FAQs. Have a problem? We are here to help.

When used as directed, most engine additives are safe. However, it’s essential to follow the manufacturer’s recommendations and avoid overuse, as excessive additives can potentially harm your engine.

Certain engine additives can help reduce emissions by cleaning engine components, improving combustion, and reducing the buildup of deposits that can lead to increased emissions.

No. You can’t really over dose however a maximum of 2 bottles to one tank of fuel is normally enough.

Some fuel additives claim to improve fuel efficiency by reducing friction and optimising combustion. However, results may vary, and the impact on fuel efficiency may not always be significant.

The effectiveness of additives can vary widely. Some additives may provide noticeable benefits in specific situations, while others may not deliver the expected results. It’s important to choose reputable products and follow the manufacturer’s instructions.

Many engine additive manufacturers offer membership or subscription options to help you buy their products regularly. This can be a convenient way to ensure you have the additives you need for ongoing engine maintenance. We are certainly looking into this as a future development so watch this space. If you require monthly treatments please get in touch with Skinny Tree Limited by emailing sales@skinnytree.co.uk.

It is recommended for best results to have half a tank of fuel.

The frequency of use depends on the type of engine additive and the specific product. It’s typically recommended to use them at regular intervals, such as during oil changes or fuel refills.

Engine additive treatments are chemical compounds or products designed to improve the performance, efficiency, or longevity of internal combustion engines by modifying the properties of the engine oil, fuel, or other engine components.

Common types include fuel additives, oil additives, and cooling additives. additivesFuel additives are used to clean fuel systems and improve combustion. Oil additives are designed to enhance lubrication and reduce engine wear. Cooling additives help maintain proper engine cooling.

We charge £2.99 on shipping within the United Kingdom. Normally a order will be dispatched within 48hrs and then delivery takes around 3 – 5 days.

The frequency of using an engine additive treatments can vary depending on the specific product and your vehicle’s needs. Generally, it’s recommended to follow the manufacturer’s guidelines, which can be found in your vehicle’s owner’s manual. Some additives are designed for regular use, while others are meant for occasional or specific maintenance. If you have a particular product in mind, check the label or instructions for the recommended usage frequency.

No. Wynn’s additives have been tried and tested on most modern fluids and can be used providing directions are followed. Feel free to contact sales@skinnytree.co.uk if you are unsure.