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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 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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Millers Oils Diesel Power ECOMAX Fuel Treatment Multishot

Millers Oils Diesel Power ECOMAX Fuel Treatment Multishot

500ml

RRP £15.95
£12.95
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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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Amsoil Break-In Oil SAE 30

Amsoil Break-In Oil SAE 30

1 US Quart

Opie Price
£14.95
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Millers Oils Petrol Power ECOMAX Fuel Treatment Multishot

Millers Oils Petrol Power ECOMAX Fuel Treatment Multishot

500ml

RRP £17.95
£15.95
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Classic Valvemaster Lead Replacement Additive

Classic Valvemaster Lead Replacement Additive

250ml

Opie Price
£12.95
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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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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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Liqui Moly Engine Flush Plus

Liqui Moly Engine Flush Plus

300ml - SKU 8374

Opie Price
£6.95
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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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Millers Oils Diesel Injector Cleaner

Millers Oils Diesel Injector Cleaner

250ml

RRP £9.95
£8.95
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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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Silkolene PRO BOOST Octane Improver (Fuchs)

Silkolene PRO BOOST Octane Improver (Fuchs)

1 Litre

RRP £30.95
£26.95
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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 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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Liqui Moly Motor Oil Saver

Liqui Moly Motor Oil Saver

300ml - SKU 1802

Opie Price
£8.95
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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 VSPe Power Plus One Shot (Ethanol / Lead / Octane) Fuel Treatment

Millers Oils VSPe Power Plus One Shot (Ethanol / Lead / Octane) Fuel Treatment

250ml

Opie Price
£11.95
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Millers Oils Diesel Power ECOMAX One Shot Boost

Millers Oils Diesel Power ECOMAX One Shot Boost

250ml

Opie Price
£6.95
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Millers Oils VSPe Power Plus Multi-Shot (Ethanol / Lead / Octane) Fuel Treatment

Millers Oils VSPe Power Plus Multi-Shot (Ethanol / Lead / Octane) Fuel Treatment

500ml

RRP £37.96
£36.95
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Comma Engine Flush Oil Additive for Petrol & Diesel Engines

Comma Engine Flush Oil Additive for Petrol & Diesel Engines

400ml

Opie Price
£5.95
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Comma Petrol Magic Fuel Additive & Injector Cleaner

Comma Petrol Magic Fuel Additive & Injector Cleaner

400ml

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

Comma Diesel Magic Fuel Additive & Injector Cleaner

400ml

Opie Price
£6.95
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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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Liqui Moly Octane Booster

Liqui Moly Octane Booster

200ml - SKU 21616

Opie Price
£9.95
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Millers Oils EPP Petrol Injector Cleaner

Millers Oils EPP Petrol Injector Cleaner

400ml

RRP £25.00
£16.99
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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 Radiator Cleaner

Liqui Moly Radiator Cleaner

300ml - SKU 1804

Opie Price
£4.99
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Liqui Moly DPF / GPF Cleaner

Liqui Moly DPF / GPF Cleaner

Opie Price
£18.95
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Lucas Oil Heavy Duty Oil Stabiliser

Lucas Oil Heavy Duty Oil Stabiliser

Opie Price
£10.99
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ISOPON Leak Stop For Petrol Tanks Radiators & Sumps - 250 ml (LKSTOP/S)

ISOPON Leak Stop For Petrol Tanks Radiators & Sumps - 250 ml (LKSTOP/S)

250 ml

Opie Price
£11.95
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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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Comma Diesel D-Tox Fuel System & Injector Cleaner

Comma Diesel D-Tox Fuel System & Injector Cleaner

400ml

Opie Price
£12.95
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Price Beater
Amsoil DOMINATOR Octane Boost

Amsoil DOMINATOR Octane Boost

12oz Bottle

Opie Price
£12.95
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Price Beater
Amsoil Diesel Cetane Boost

Amsoil Diesel Cetane Boost

16oz Bottle (473ml)

Opie Price
£16.99
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Wynns Radiator Flush (56064)

Wynns Radiator Flush (56064)

325ml

Opie Price
£6.50
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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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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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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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KALIMEX JLM Petrol Injector Cleaner - 250ml (J03130)

KALIMEX JLM Petrol Injector Cleaner - 250ml (J03130)

250ml

Opie Price
£10.50
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KALIMEX JLM Air Intake & EGR Cleaner - 500ml Aerosol (J02710)

KALIMEX JLM Air Intake & EGR Cleaner - 500ml Aerosol (J02710)

500ml Aerosol

Opie Price
£17.50
Add To Basket
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Motul Fuel System Clean Auto - Car & Boat Fuel System Cleaner Additive

Motul Fuel System Clean Auto - Car & Boat Fuel System Cleaner Additive

300ml

RRP £14.95
£12.95
Add To Basket
Price Beater
Holts EGR & Carb Cleaner Aerosol - 500ml Aerosol (HMTN0201A)

Holts EGR & Carb Cleaner Aerosol - 500ml Aerosol (HMTN0201A)

500ml Aerosol

Opie Price
£5.50
Add To Basket
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Wynns Super Charge Oil Treatment for Petrol & Diesel Engines

Wynns Super Charge Oil Treatment for Petrol & Diesel Engines

Opie Price
£7.99
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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
Add To Basket
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Valvoline Cooling System Cleaner

Valvoline Cooling System Cleaner

250ml

Opie Price
£6.95
Add To Basket
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KALIMEX JLM Diesel DPF Cleaner Spray - 400ml Aerosol (J02220)

KALIMEX JLM Diesel DPF Cleaner Spray - 400ml Aerosol (J02220)

400ml Aerosol

Opie Price
£29.95
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Wynns Petrol Fuel System Cleaner (61354A)

Wynns Petrol Fuel System Cleaner (61354A)

325ml

Opie Price
£12.50
Add To Basket
Price Beater
Valvoline Diesel System Protector

Valvoline Diesel System Protector

300ml

Opie Price
£11.95
Add To Basket
Price Beater
Cataclean Diesel Fuel and Exhaust System Cleaner - 500ml Bottle (CAT002)

Cataclean Diesel Fuel and Exhaust System Cleaner - 500ml Bottle (CAT002)

500ml Bottle

Opie Price
£19.50
Add To Basket
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Wynns Crystal Clean And Protect

Wynns Crystal Clean And Protect

Opie Price
£6.50
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KALIMEX JLM Diesel Rapid Fuel System Clean - 500ml (J02330)

KALIMEX JLM Diesel Rapid Fuel System Clean - 500ml (J02330)

500ml

Opie Price
£20.50
Add To Basket
Price Beater
Motul Diesel System Clean Auto - Injector & Fuel System Cleaner

Motul Diesel System Clean Auto - Injector & Fuel System Cleaner

300ml

Opie Price
£15.95
Add To Basket
Price Beater
Millers Oils Petrol Injector Cleaner

Millers Oils Petrol Injector Cleaner

250ml

RRP £9.95
£8.95
Add To Basket
Price Beater
STP Smoke Treatment for Petrol Engines - 450ml (64450EN06)

STP Smoke Treatment for Petrol Engines - 450ml (64450EN06)

450ml

Opie Price
£7.50
Add To Basket
Price Beater
Comma X-Flow Flush Out Mineral Engine Oil Flush

Comma X-Flow Flush Out Mineral Engine Oil Flush

5 Litres

Opie Price
£27.95
Add To Basket
Price Beater
Wynns Radiator Stop Leak (55864)

Wynns Radiator Stop Leak (55864)

325ml

Opie Price
£6.95
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