UK Engine Additive Specialists. Restore lost performance.

Buy direct from Skinny Tree Limited.
Petrol AdditivesDiesel Additives

Passionate about providing high-quality solutions to keep your vehicle running at its best.

Power your engine, elevate your care.

Looking to buy engine additives in bulk – visit Skinny Tree Trade.

Running a garage or fleet? Stock up and save. Visit trade.skinnytree.co.uk for exclusive access to bulk discounts, fast dispatch, and reliable UK delivery on our full range of engine additives. Trusted by professionals.

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Specialising in premium engine additives.

We stock top-tier brands such as Wynn’s and other industry leaders to ensure superior engine performance and protection.

Wynn’s Substi-Plomb lead substitute with fuel stabiliser 250ml

Classic Motoring

Wynn's Commercial Vehicle DPF Regenerator and NOx Sensor Protector 1000ml

Commercial Vehicle Additives

Wynn’s Radiator Flush 325ml

Cooling Additives

Wynn's Diesel Power 7 1000ml

Diesel Additives

Wynn’s Xtreme Petrol Emission Reducer (Clean Burn) 325ml

Emmission Additives

Wynn’s Total Action Diesel Cleaner 325ml

Fuel Additives

Wynn’s Stop Smoke 325ml

Oil Additives

Wynn's Petrol Power 7 1000ml

Petrol Additives

Wynn's Professional Diesel Extreme Injector Cleaner 500ml (Multi-Buy X4)

Professional Additives

Rain-X Dash & Screen Cleaner & Protectant 300ml (Promo)

NEW: Rain-X Dash & Screen Cleaner & Protectant 300ml

Rain-X Dash & Screen Cleaner & Protectant 300ml is a easy and safe product spray. It was developed to clean dashboards and touch screens inside the vehicle.

Once applied Rain-X Dash & Screen Cleaner leaves a protective layer against dust and dirt, prolonging the cleaning effect.

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