Engine additive promotions and monthly special offers by Skinny Tree Limited.
Trusted premium engine additive and aftercare UK stockist. Buy with confidence. ContactExplore exclusive promotions and special offers from Skinny Tree Limited.
Discover limited-time deals and promotions on a curated selection of engine additives and vehicle aftercare ranges – your gateway to savings awaits. Don’t miss out, shop now!
Skinny Winter Warmer Voucher Code - 15% off your order
Stay out of mechanical trouble this winter and help protect your vehicle engine health. Use our voucher code SKINNYWINTER15 on your next order to get 15% off.
Please note discount will not be applied any previous offers currently in place.
Multi-buy discount: 10% off when you buy 3 or more of the same.
On our engine additives and aftercare range we promote a multi-buy offer. Buy any 3 products of the same and receive a 10% discount at checkout.
Rain-X Dash & Screen Cleaner & Protectant 300ml
£9.49Wynn's Professional Oil System Cleaner Engine Flush (Multi-Buy X4)
Original price was: £55.99.£29.99Current price is: £29.99.Wynn's Professional Diesel Extreme Injector Cleaner 500ml (Multi-Buy X4)
Original price was: £67.99.£44.99Current price is: £44.99.Rain-X Graphene Wheel Cleaner and Tyre Shine Kit
Original price was: £25.98.£23.38Current price is: £23.38.Rain-X - Cerami-X High Foam Wash and Wax
£12.99Rain-X Graphene Wheel Cleaner and Protectant 500ml
£12.99Rain-X Graphene Tyre Shine and Protectant 500ml
£12.99Wynn's Petrol EGR Cleaner 150ml
£9.99Wynn's Diesel Xtreme System Clean 375ml
£8.99SLICK50 Fuel System Treatment 375ml
£14.99SLICK50 Engine Treatment 500ml
£16.99SLICK50 Engine Treatment 750ml
£22.99Permatex High Strength Threadlocker Red 50ml
£14.99Permatex High Strength Threadlocker Red 10ml
£6.99Permatex Medium Strength Threadlocker Blue 50ml
£14.99Permatex Medium Strength Threadlocker Blue 10ml
£6.99Permatex Fast Orange Hand Cleaner 3.78l
£14.99Rain-X Cerami-X Waterless Car Wash and Rain Repellent 750ml
£14.99Rain-X Cerami-X Exterior Detailer 750ml
£14.99Rain-X Insect Remover and Protectant 500ml
£10.99Rain-X X-Treme Clean and Headlight Restorer 325ml
£12.49Rain-X Windscreen Repair Kit
£14.95Rain-X De-Icer and Repellent 500ml
£9.99Rain-X Plastic Water Repellent 500ml
£10.99Rain-X Plastic Water Repellent 200ml
£9.99Rain-X 2-in-1 Glass Cleaner Rain Repellent 500ml
£5.99Rain-X Anti-Fog 200ml
£7.99Rain-X Rain Repellent 500ml
£7.99Rain-X Rain Repellent 200ml
£4.99Wynn's Noise and Vibration Reducer 325ml
£9.99Wynn's Xtreme Petrol System Clean 325ml
£7.99Wynn's Diesel Power 7 1000ml
£35.99Wynn's Petrol Power 7 1000ml
£35.99Wynn's Crystal Clean and Protect 125ml
£6.99Wynn's Commercial Crystal Clean and Protect 500ml
£13.49Permatex Fast Orange Hand Cleaner 440ml
£7.99Wynn's Commercial Vehicle Cooling System Flush 1000ml
£16.99Wynn's Commercial Vehicle Cooling System Treatment and Stop Leak 1000ml
£19.99Wynn's Commercial Vehicle Super Charge Oil Treatment 1000ml
£21.99Wynn's Commercial Vehicle Oil System Flush 1000ml
£16.99Wynn's Commercial Vehicle Emission Reducer 1000ml
£24.99Wynn's Commercial Vehicle DPF Regenerator and NOx Sensor Protector 1000ml
£39.99Wynn's Commercial Vehicle Ice Proof for Diesel 1000ml
£21.99Wynn's Commercial Vehicle Injector Cleaner and Fuel Filter Primer 1000ml
£19.99Wynn's Wheel Cleaner and Tyre Shine Kit
Original price was: £16.98.£9.99Current price is: £9.99.Wynn's DPF Regeneration, Injector and Engine Flush Kit
Original price was: £22.97.£20.67Current price is: £20.67.Wynn's Diesel Turbo and Injector Cleaner Kit
Original price was: £15.98.£14.38Current price is: £14.38.Wynn's Total Action Diesel Cleaner Kit
Original price was: £19.98.£17.98Current price is: £17.98.Wynn's Total Action Petrol Cleaner Kit
Original price was: £19.98.£17.98Current price is: £17.98.Wynn's E10 Protection Cleaning Kit
Original price was: £18.98.£17.08Current price is: £17.08.Wynn's Radiator Flush and Stop Leak Cooling Service Kit
Original price was: £14.48.£13.03Current price is: £13.03.Wynn's Specialist E10 Protector 250ml
£11.99Wynn's Total Action Petrol Cleaner 325ml
£11.99Wynn's Pre-emission Test Treatment For Petrol Engines 325ml
£12.99Wynn's Dry Fuel Petrol and Diesel 325ml
£10.99Wynn's Catalytic Converter and Lambda Cleaner 325ml
£9.99Wynn's Substi-Plomb lead substitute with fuel stabiliser 250ml
£9.99Wynn's Xtreme Petrol Emission Reducer (Clean Burn) 325ml
£6.99Wynn's Air Intake and Carburettor Cleaner 500ml
£8.99Wynn's Injector Cleaner For Petrol Engines 325ml
£6.99Wynn's Formula Gold High Performance Diesel System Treatment 500ml
£13.99Wynn's Total Action Diesel Cleaner 325ml
£11.99Wynn's Diesel Turbo Cleaner 325ml
£9.99Wynn's Xtreme Diesel Emission Reducer (Clean Burn) 325ml
£6.99Wynn's Diesel Injector Cleaner 325ml
£5.99Wynn's Diesel Particulate Filter Cleaner 325ml
£9.99Wynn's Fuel Biocide 250ml
£10.99Wynn's Brake and Clutch Cleaner 500ml
£8.99Wynn's Formula Gold High Performance Engine Treatment 500ml
£13.99Wynn's Engine Stop Leak 325ml
£6.99Wynn's Start-Stop Engine Protector 325ml
£7.99Wynn's Hydraulic Valve Lifter Treatment 325ml
£8.99Wynn's Automatic Transmission and Power Steering Stop Leak and Conditioner 325ml
£12.99Wynn's Power Steering Stop Leak
£9.99Wynn's HPLS Transmission Treatment (+ Stop Leak Properties)
£9.99Wynn's Super Charge 425ml
£6.99Wynn's Super Charge 330ml
£5.99Wynn's Stop Smoke 325ml
£5.99Wynn's Engine Flush 425ml
£6.99Wynn's Radiator Flush 325ml
£7.99Wynn's Clean-Air 150ml
Original price was: £6.99.£2.99Current price is: £2.99.Wynn's Airco-Pure 150ml
Original price was: £10.99.£4.99Current price is: £4.99.Wynn's Glass Cleaner 500ml
£6.99Wynn's Scratch Remover
Original price was: £5.99.£2.99Current price is: £2.99.Wynn's Tyre Shine 500ml
Original price was: £6.99.£2.99Current price is: £2.99.Wynn's Dash Clean and Protect 400ml
Original price was: £7.99.£2.99Current price is: £2.99.Wynn's Wheel Cleaner 500ml
£4.99Wynn's Hydroalcoholic Surface Cleaner 500ml
Original price was: £6.99.£2.99Current price is: £2.99.Wynn's Formula Gold High Performance Petrol System Treatment 500ml
£13.99Wynn's Pre-emission Test Treatment for Diesel Engines 325ml
£12.99Wynn's Diesel EGR Cleaner 150ml
£10.99Wynn's Radiator Stop Leak 325ml
£6.49