We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestDiesel Engine Fuel Additivesof January 2026

112M consumers helped this year.

14% off

1

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 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

9.9

View Product
Buy it on Amazon

2

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 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

View Product
Buy it on Amazon

7% off

3

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 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

9.6

View Product
Buy it on Amazon

14% off

4

STP Diesel High Milage Injector Cleaner 200 ml, Cleans and Protects your Engine for 300 miles, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP Diesel High Milage Injector Cleaner 200 ml, Cleans and Protects your Engine for 300 miles, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

9.3

View Product
Buy it on Amazon

5

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

Wynn's

9.0

View Product
Buy it on Amazon

Related productsUp to 3% off

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 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

View Deal
Lucas Oil 10013 Fuel Treatment-3.78L, clear yellow

Lucas Oil 10013 Fuel Treatment-3.78L, clear yellow

View Deal
Wynn's Diesel Injector Cleaner - Reduces Knocking & Black Smoke - Protects Fuel System from Corrosion - Safe for EGR, Turbo, DPF & SCR - 325ml

Wynn's Diesel Injector Cleaner - Reduces Knocking & Black Smoke - Protects Fuel System from Corrosion - Safe for EGR, Turbo, DPF & SCR - 325ml

View Deal
Hot Shot's Secret P040432Z Diesel Extreme Clean and Boost - 32 fl. oz. by Hot Shot's Secret

Hot Shot's Secret P040432Z Diesel Extreme Clean and Boost - 32 fl. oz. by Hot Shot's Secret

View Deal

6

Wynn's Diesel Power 7 Complete Action Fuel Additive Optimises Engine Performance 1L
Wynn's Diesel Power 7 Complete Action Fuel Additive Optimises Engine Performance 1L

Wynn's

8.8

View Product
Buy it on Amazon

5% off

7

HYDRA DPB-100 Diesel Power Blast - Diesel Fuel System Cleaner | Diesel Injector Cleaner with Diesel Fuel Additive | 1 litre treats 1,000L
HYDRA DPB-100 Diesel Power Blast - Diesel Fuel System Cleaner | Diesel Injector Cleaner with Diesel Fuel Additive | 1 litre treats 1,000L

HYDRA

8.5

View Product
Buy it on Amazon

13% off

8

WYNNS Professional Diesel Injector Cleaner - One-Tank Solution for Optimal Fuel System Performance - Cleans & Lubricates Injectors - Improves Fuel Economy & Engine Efficiency - 500ml
WYNNS Professional Diesel Injector Cleaner - One-Tank Solution for Optimal Fuel System Performance - Cleans & Lubricates Injectors - Improves Fuel Economy & Engine Efficiency - 500ml

Wynn's

8.2

View Product
Buy it on Amazon

19% off

9

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

Wynn's

7.9

View Product
Buy it on Amazon

30% off

10

Redex Diesel Booster, Diesel Additives To Boost Cetane Number, Maximise Performance & Increase Fuel Economy With Redex Diesel Fuel Additive, Boost Diesel Engine Performance & Improve Power, 250ml
Redex Diesel Booster, Diesel Additives To Boost Cetane Number, Maximise Performance & Increase Fuel Economy With Redex Diesel Fuel Additive, Boost Diesel Engine Performance & Improve Power, 250ml

Redex

7.7

View Product
Buy it on Amazon
subscribe-icon

Best Reviews Guide Newsletter

Get exclusive articles, recommendations, shopping tips, and sales alerts

By submitting your email address you agree to our Terms and Conditions and Privacy Policy