10 Best Fuel Additives For Diesel Engines

10 Best fuel additives for diesel engines - December 2025

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Last Updated: 22-12-2025

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Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)

Archoil

9.8

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14% Off

STP Diesel Fuel Additive Treatment Bundle, Includes Diesel Injector Cleaner and Ultra 5-in-1 Diesel System Cleaner, Cleans Injectors and Restores Performance For A Smoother Engine, Made in the UK

STP

9.6

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9% Off

Wynn's High Performance Diesel Fuel System Treatment - Enhances Combustion, Improves Acceleration, Reduces Fuel Consumption & Black Smoke - 500ml

Wynn's

9.5

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Best value

14% Off

Cataclean Diesel Fuel & Exhaust Cleaner Catalytic Converter Valve & Injector Cleaner 500ml

Cataclean

9.2

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Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 2 x 250ml Treats 500L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (2 x 250ml)

Archoil

9.1

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3% Off

Fastcar 2 x Redex Diesel System Cleaner (500ml For The Price Of 250ml)

Redex

8.8

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6% Off

Dipetane 1L Fuel Additive | Improve Fuel Economy | Reduce Emmisions | Helps keep DPF Clean Diesel and Petrol | Flush and clean Engine, Injector, EGR valve and Sensors - Treats 200L of Fuel

DIPETANE

8.6

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40% Off

STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

8.4

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Wynn's Extreme Diesel System Cleaner - Deep Cleaning Engine Treatment - Restores Fuel Economy & Reduces Emissions - Prevents Turbo, EGR Valve & DPF Issues - 325ml

Wynn's

8.2

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Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Diesel Engines, Suitable For Hybrids

Redex

8.1

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Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)

STP Diesel Fuel Additive Treatment Bundle, Includes Diesel Injector Cleaner and Ultra 5-in-1 Diesel System Cleaner, Cleans Injectors and Restores Performance For A Smoother Engine, Made in the UK

Wynn's High Performance Diesel Fuel System Treatment - Enhances Combustion, Improves Acceleration, Reduces Fuel Consumption & Black Smoke - 500ml

Cataclean Diesel Fuel & Exhaust Cleaner Catalytic Converter Valve & Injector Cleaner 500ml

Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 2 x 250ml Treats 500L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (2 x 250ml)

Fastcar 2 x Redex Diesel System Cleaner (500ml For The Price Of 250ml)

Dipetane 1L Fuel Additive | Improve Fuel Economy | Reduce Emmisions | Helps keep DPF Clean Diesel and Petrol | Flush and clean Engine, Injector, EGR valve and Sensors - Treats 200L of Fuel

STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

Wynn's Extreme Diesel System Cleaner - Deep Cleaning Engine Treatment - Restores Fuel Economy & Reduces Emissions - Prevents Turbo, EGR Valve & DPF Issues - 325ml

Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Diesel Engines, Suitable For Hybrids

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