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Car Additives & Flushes

Opie Oils stocks a wide range of engine cleaner, engine flushes, fuel treatments and fuel additives to help keep your fuel system running at peak efficiency, octane boosters for increased performance on road or track plus lead replacement products for older cars.

Please note that we are unable to send fuel treatments to destinations outside the UK.

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209 Products (Viewing: 1 - 60 of 209)

1
234
Millers Oils Diesel Power ECOMAX Fuel Treatment Multishot

Millers Oils Diesel Power ECOMAX Fuel Treatment Multishot

500ml

RRP £15.95
£14.95
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Liqui Moly Engine Flush Plus

Liqui Moly Engine Flush Plus

300ml - SKU 8374

Opie Price
£6.95
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Classic Valvemaster Lead Replacement Additive

Classic Valvemaster Lead Replacement Additive

250ml

Opie Price
£12.95
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Liqui Moly Pro-Line Engine Flush

Liqui Moly Pro-Line Engine Flush

Opie Price
£9.95
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Liqui Moly Cera Tec

Liqui Moly Cera Tec

300ml - SKU 3721

Opie Price
£20.95
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Classic Valvemaster PLUS 3-in-1 Lead Replacement Additive

Classic Valvemaster PLUS 3-in-1 Lead Replacement Additive

250ml (treats 250 litres)

Opie Price
£14.95
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Castrol Engine Shampoo (Pre-Oil Change Treatment)

Castrol Engine Shampoo (Pre-Oil Change Treatment)

300ml

Opie Price
£14.95
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Classic Etha-Guard Plus Ethanol Stabiliser Petrol Additive

Classic Etha-Guard Plus Ethanol Stabiliser Petrol Additive

250ml

Opie Price
£16.99
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Millers Oils EPP DPF Turbo & Exhaust Cleaner

Millers Oils EPP DPF Turbo & Exhaust Cleaner

400ml

RRP £12.00
£11.95
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Liqui Moly Hydraulic Lifter Additive

Liqui Moly Hydraulic Lifter Additive

300ml - SKU 2770

Opie Price
£5.95
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Millers Oils Engine Flush Fully Synthetic Engine Oil Treatment

Millers Oils Engine Flush Fully Synthetic Engine Oil Treatment

250ml

RRP £6.95
£5.95
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Silkolene PRO CCA Ultra Cooling System Corrosion Inhibitor

Silkolene PRO CCA Ultra Cooling System Corrosion Inhibitor

1 Litre

RRP £41.95
£32.95
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Liqui Moly Super Diesel Additive

Liqui Moly Super Diesel Additive

250ml - SKU 1806

Opie Price
£7.99
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Millers Oils EPP Engine Flush Fully Synthetic Engine Oil Treatment

Millers Oils EPP Engine Flush Fully Synthetic Engine Oil Treatment

400ml

RRP £12.00
£8.95
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Comma X-Flow Flush Out Mineral Engine Oil Flush

Comma X-Flow Flush Out Mineral Engine Oil Flush

5 Litres

Opie Price
£31.99
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Silkolene PRO BOOST Octane Improver (Fuchs)

Silkolene PRO BOOST Octane Improver (Fuchs)

1 Litre

RRP £30.95
£26.95
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Millers Oils Diesel Particulate Filter (DPF) Cleaner & Regenerator

Millers Oils Diesel Particulate Filter (DPF) Cleaner & Regenerator

250ml

Opie Price
£8.95
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Millers Oils CVL (Valve Seat Lubricant & Combustion Enhancer)

Millers Oils CVL (Valve Seat Lubricant & Combustion Enhancer)

250ml

RRP £12.95
£10.99
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Millers Oils Extra Cool (Corrosion Inhibitor & Coolant Enhancer) Concentrate

Millers Oils Extra Cool (Corrosion Inhibitor & Coolant Enhancer) Concentrate

250ml

RRP £17.95
£15.95
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Millers Oils Petrol Power ECOMAX Fuel Treatment - One Shot Boost

Millers Oils Petrol Power ECOMAX Fuel Treatment - One Shot Boost

250ml

RRP £8.95
£7.99
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Wynns Stop Smoke for Oil Petrol & Diesel (50865)

Wynns Stop Smoke for Oil Petrol & Diesel (50865)

325ml

Opie Price
£7.50
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Millers Oils EPS Ethanol Protection System Fuel Treatment Additive - One Shot
Clearance

Millers Oils EPS Ethanol Protection System Fuel Treatment Additive - One Shot

Was £69.95
£24.95
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Wynns Engine Flush for Petrol & Diesel Engines - Detergent Based (51265)

Wynns Engine Flush for Petrol & Diesel Engines - Detergent Based (51265)

425ml

Opie Price
£8.50
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Liqui Moly Motor Oil Saver

Liqui Moly Motor Oil Saver

300ml - SKU 1802

Opie Price
£8.95
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Liqui Moly Pro-Line Turbocharger Additive for Initial Fill

Liqui Moly Pro-Line Turbocharger Additive for Initial Fill

20g - SKU 21651

Opie Price
£7.99
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Liqui Moly DEF Anti Crystal Additive Concentrate

Liqui Moly DEF Anti Crystal Additive Concentrate

250ml - SKU 21799

Opie Price
£8.95
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Liqui Moly Oil Additive

Liqui Moly Oil Additive

300ml - SKU 2591

Opie Price
£5.95
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Liqui Moly Pro-Line Oil Loss Stop Oil Additive to Rejuvenate Seals

Liqui Moly Pro-Line Oil Loss Stop Oil Additive to Rejuvenate Seals

1 Litre - SKU 5182

Opie Price
£24.95
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Price Beater
Comma Engine Flush Oil Additive for Petrol & Diesel Engines

Comma Engine Flush Oil Additive for Petrol & Diesel Engines

400ml

Opie Price
£6.95
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Comma Petrol Magic Fuel Additive & Injector Cleaner

Comma Petrol Magic Fuel Additive & Injector Cleaner

400ml

Opie Price
£7.99
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Comma Diesel Magic Fuel Additive & Injector Cleaner

Comma Diesel Magic Fuel Additive & Injector Cleaner

400ml

Opie Price
£7.99
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Millers Oils Stop Leak Engine and Gear Oil Treatment

Millers Oils Stop Leak Engine and Gear Oil Treatment

250ml

RRP £5.95
£4.99
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Power Maxed Concentrated Radiator Flush Treatment - 325ml (RADF)

Power Maxed Concentrated Radiator Flush Treatment - 325ml (RADF)

325ml

Opie Price
£4.99
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Millers Oils CVL Extra Competition Valve Lubricant - High Octane Booster

Millers Oils CVL Extra Competition Valve Lubricant - High Octane Booster

500ml

RRP £17.95
£13.99
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Wynns Diesel EGR Cleaner

Wynns Diesel EGR Cleaner

Opie Price
£11.50
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CE-LIT Rapid Radiator Leak Sealant - 0.3L (977)

CE-LIT Rapid Radiator Leak Sealant - 0.3L (977)

300ml

Opie Price
£6.50
Add To Basket
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KALIMEX JLM BorTec Friction Reduction Engine Oil Additive - 250ml (J06050)

KALIMEX JLM BorTec Friction Reduction Engine Oil Additive - 250ml (J06050)

250ml

Opie Price
£18.50
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Eolys Powerflex APF/DPF Pouch - 2 Litres (HP71/EO)
Free Shipping

Eolys Powerflex APF/DPF Pouch - 2 Litres (HP71/EO)

2 Litres

Opie Price
£86.95
Add To Basket
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Valvoline Engine Oil System Cleaner

Valvoline Engine Oil System Cleaner

300ml

RRP £9.07
£8.95
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Valvoline Cooling System Stop Leak ML V1

Valvoline Cooling System Stop Leak ML V1

300ml

Opie Price
£6.95
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RED LINE Fuel System Additive - Water & Antifreeze / Coolant Remover - Concentrate

RED LINE Fuel System Additive - Water & Antifreeze / Coolant Remover - Concentrate

355ml bottle

Opie Price
£16.99
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STP Diesel Treatment to Restore Lost Power and Performance - 200ml (54200EN)

STP Diesel Treatment to Restore Lost Power and Performance - 200ml (54200EN)

200ml

Opie Price
£5.50
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VP Racing Madditive Fuel System Cleaner

VP Racing Madditive Fuel System Cleaner

16oz (473ml) Bottle

Opie Price
£17.95
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Wynns Air Intake, Carburettor & Throttle Valve Cleaner (54179)

Wynns Air Intake, Carburettor & Throttle Valve Cleaner (54179)

500ml Aerosol

Opie Price
£6.95
Add To Basket
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Liqui Moly Radiator Stop Leak

Liqui Moly Radiator Stop Leak

Opie Price
£5.95
Add To Basket
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Liqui Moly Injection Cleaner

Liqui Moly Injection Cleaner

300ml - SKU 1803

Opie Price
£8.95
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Liqui Moly Mtx Carburetor + Valve Cleaner

Liqui Moly Mtx Carburetor + Valve Cleaner

300ml - SKU 1818

Opie Price
£8.95
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Liqui Moly Oil Smoke Stop

Liqui Moly Oil Smoke Stop

300ml - SKU 8901

Opie Price
£6.95
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Wynns Injector & Pump Cleaner For Petrol Engines (55964)

Wynns Injector & Pump Cleaner For Petrol Engines (55964)

325ml

Opie Price
£9.50
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Dipetane Pre-combustion Fuel Treatment - 100% Hydrocarbon

Dipetane Pre-combustion Fuel Treatment - 100% Hydrocarbon

Opie Price
£12.50
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Wynns CV Injector Cleaner And Filter Primer (W25290)

Wynns CV Injector Cleaner And Filter Primer (W25290)

1 Litre

Opie Price
£30.50
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Lucas Oil Diesel EGR Turbo Cleaner - 500ml (41019A)

Lucas Oil Diesel EGR Turbo Cleaner - 500ml (41019A)

500ml Aerosol

Opie Price
£8.95
Add To Basket
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Liqui Moly Pro-Line Intake System Cleaner Diesel

Liqui Moly Pro-Line Intake System Cleaner Diesel

400ml Aerosol - SKU 5168

Opie Price
£27.95
Add To Basket
Price Beater
Liqui Moly DPF / GPF Cleaner

Liqui Moly DPF / GPF Cleaner

Opie Price
£18.95
Add To Basket
Price Beater
Millers Oils EPP Diesel System Clean & Protect Fuel Treatment

Millers Oils EPP Diesel System Clean & Protect Fuel Treatment

400ml

RRP £12.00
£9.95
Add To Basket
Price Beater
Millers Oils EPP PPF Turbo & Exhaust Cleaner

Millers Oils EPP PPF Turbo & Exhaust Cleaner

400ml

RRP £12.00
£11.95
Add To Basket
Price Beater
Liqui Moly Octane Booster

Liqui Moly Octane Booster

200ml - SKU 21616

Opie Price
£9.95
Add To Basket
Price Beater
Liqui Moly Pro-Line Injector & Glow Plug Dismantling Aid

Liqui Moly Pro-Line Injector & Glow Plug Dismantling Aid

400ml Aerosol - SKU 3379

Opie Price
£10.99
Add To Basket
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Liqui Moly Radiator Cleaner

Liqui Moly Radiator Cleaner

300ml - SKU 1804

Opie Price
£4.99
Add To Basket
Price Beater
Liqui Moly Speed Tec Gasoline Petrol Fuel Additive

Liqui Moly Speed Tec Gasoline Petrol Fuel Additive

250ml - SKU 3720

Opie Price
£13.99
Add To Basket
Price Beater
1
234
Opie Oils stocks a wide range of engine cleaner, engine flushes, fuel treatments and fuel additives to help keep your fuel system running at peak efficiency, octane boosters for increased performance on road or track plus lead replacement products for older cars.
Free UK delivery £80+ (geographic restrictions apply)
60 Day Returns
Free Expert Advice
No Leak Guarantee
01209 202944