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Diesel Injector Cleaner Comparison - July 2025

7 Best Diesel Injector Cleaner In the UK

Last Updated - 16/07/2025

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Our Score

To Amazon

View DealOn Amazon

Model

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

Model

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

Model

STP Diesel Injector Cleaner 200ml - 3x200ml = 600ml

Model

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

Model

Wynn's Diesel Injector Cleaner Engine Fuel System Additive Treatment 325ml

Model

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

Model

WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT)

Brand

Wynn's

Brand

STP

Brand

STP

Brand

STP

Brand

Wynn's

Brand

Wynn's

Brand

WOL

Reviews

9,520 reviews

Reviews

12,160 reviews

Reviews

268 reviews

Reviews

4,268 reviews

Reviews

3,344 reviews

Reviews

1,924 reviews

Reviews

60 reviews

Features

Worth the money

9.6

Worth the money

9.4

Worth the money

9.8

Worth the money

9.8

Worth the money

9.3

Worth the money

9.1

Worth the money

8.4

Simple to use

9.9

Simple to use

9.9

Simple to use

9.9

Simple to use

9.9

Simple to use

9.8

Simple to use

9.8

Simple to use

9.1

Distance

9.6

Distance

9.1

Distance

9.6

Distance

9.3

Distance

9.1

Distance

9.1

Distance

8.4

Tech Specs

manufacturer part number

12264

manufacturer part number

GST25200EN

manufacturer part number

WYN51668A

manufacturer part number

WYN12293

manufacturer part number

item weight

300 g

item weight

207 g

item weight

300 g

item weight

460 g

item weight

customer reviews

4.5 4.5 out of 5 stars 2, 380 ratings 4.5 out of 5 stars

customer reviews

4.6 4.6 out of 5 stars 1, 067 ratings 4.6 out of 5 stars

customer reviews

4.5 4.5 out of 5 stars 836 ratings 4.5 out of 5 stars

customer reviews

4.4 4.4 out of 5 stars 481 ratings 4.4 out of 5 stars

customer reviews

4.6 4.6 out of 5 stars 15 ratings 4.6 out of 5 stars

package dimensions

21.5 x 8.5 x 4.5 cm 300 g

package dimensions

23.2 x 10.4 x 4.5 cm 399.16 g

package dimensions

21.7 x 8.5 x 4.5 cm 300 g

package dimensions

25.4 x 8.9 x 4.6 cm 460 g

package dimensions

model

Wynn's 12264, Xtreme Diesel System Clean, 325 ml

model

WY51668

model

18433

model

Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you

9.7
1

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

9.9 Simple to use

9.6 worth the money

9.6 distance

Why we love it

Restores engine performance efficiently.

Improves fuel economy noticeably.

Reduces harmful emissions effectively.
Main highlights

RESTORES LOST ENGINE PERFORMANCE & REDUCES EMISSIONS: The Extreme diesel system cleaner revitalises the engine power by cleaning and protecting critical fuel system components. Improves throttle response, acceleration, and overall drivability by ensuring an uninterrupted fuel supply. Reduces harmful exhaust emissions by promoting cleaner combustion and minimising unburned fuel residues. Helps the engine run more smoothly and quietly, reducing vibrations and improving overall efficiency. Supports compliance with emission standards by lowering carbon monoxide, nitrogen oxides, and particulate matter in exhaust gases.
RESTORES FUEL ECONOMY: This product helps optimise fuel consumption by ensuring a cleaner and more efficient fuel-burning process. By eliminating harmful deposits and improving fuel atomisation, it contributes to a smoother and more complete combustion cycle. This results in less fuel waste and improved miles per gallon, allowing for greater cost savings over time. By restoring lost performance, the cleaner enables engines to operate at peak efficiency, reducing unnecessary fuel consumption caused by inefficient combustion. Ideal for vehicles experiencing a decline in fuel economy due to carbon build-up and fuel injector blockages.
PREVENTS PROBLEMS WITH TURBO, EGR VALVE & DPF: Designed to maintain the cleanliness of crucial engine components such as the turbocharger, Exhaust Gas Recirculation (EGR) valve, and Diesel Particulate Filter (DPF). Helps prevent carbon and soot build-up, which can lead to blockages and reduced performance. By keeping these components clean, it enhances engine efficiency and reduces the risk of costly repairs. Supports proper airflow and exhaust circulation, ensuring smooth turbo operation and reducing emissions. Helps to minimise common diesel engine issues such as sluggish acceleration, excessive smoke, and reduced power caused by carbon deposits.
ELIMINATES AND AVOIDS STARTING PROBLEMS: Effectively addresses hard starting issues caused by contaminated fuel or clogged injectors. Ensures a smoother ignition process by restoring proper fuel flow and combustion efficiency. Helps eliminate rough idling, misfires, and hesitation that often result from a dirty fuel system. By cleaning the fuel injectors and fuel pump, it improves cold starts and reduces strain on the battery and starter motor. Ideal for vehicles that experience difficulties starting due to carbon deposits and injector blockages. Consistent use helps prevent future starting problems and maintains reliable engine operation under various driving conditions.
CLEANS THE ENTIRE DIESEL FUEL SYSTEM: Effectively removes dirt, carbon deposits, and other harmful residues that accumulate within the fuel system over time. Ensures a cleaner and more efficient combustion process by thoroughly cleaning key components such as the fuel pump, diesel injectors, and intake valves. By dissolving stubborn contaminants, it helps prevent clogging and improves the overall efficiency of the fuel delivery system. Designed to work in a single treatment, providing a powerful 'one tank' clean-up that restores optimal fuel system functionality.
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9.4
2

STP
41% 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

9.9 Simple to use

9.4 worth the money

9.1 distance

Why we love it

Enhances engine performance efficiently.

Improves fuel economy noticeably.

Protects engine from wear and tear.
Main highlights

What You'll Get - 400 ml Diesel Fuel System Cleaner
Restores Power and Performance - Recovers peak engine performance by removing harmful deposits
Reduces Diesel consumption and exhaust emissions - promotes better fuel economy
Protects Your Engine - Reduces friction and protects key engine parts from wear and corrosion
Concentrated Cleaning Power - Cleans and conditions the entire fuel delivery system in one tank
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On Amazon

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9.2
3

STP
STP Diesel Injector Cleaner 200ml - 3x200ml = 600ml

9.9 Simple to use

9.8 worth the money

9.6 distance

Why we love it

Restores engine performance

Reduces diesel consumption

Helps to reduce exhaust emissions
Main highlights

BUY STP Diesel Injector Cleaner is specially formulated to help restore engine performance and efficiency by dissolving harmful deposits, cleaning and conditioning fuel delivery systems, and smoothing rough idling. It also helps to reduce diesel consumption and exhaust emissions. Suitable for all diesel engines including DI, IDI and common rail, and catalytic converters.
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Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.
We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.

Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.

Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.

Value for money

TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.

7 Best Diesel Injector Cleaner In the UK

Our Score

To Amazon

Model

Brand

Reviews

Features

Worth the money

Simple to use

Distance

Tech Specs

manufacturer part number

item weight

customer reviews

package dimensions

model

Available On

Our Top 3 Picks

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

Why we love it

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

Why we love it

STP Diesel Injector Cleaner 200ml - 3x200ml = 600ml

Why we love it

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

Related deals you might like for best diesel injector cleaner

Wynn's Formula Gold High Performance Diesel System Treatment 500ml

STP GST59200EN Diesel Injector Cleaner 200 ml,Packaging/label may vary

SYPRIN Diesel Cleaner 500ml - cleaning and maintenance of diesel fuel systems and motors I diesel cleaner additives for injector dpf particulate filter motor

7 Best Diesel Injector Cleaner In the UK

best diesel injector cleaner comparison

Our Score

To Amazon

Model

Brand

Reviews

Features

Worth the money

Simple to use

Distance

Tech Specs

manufacturer part number

item weight

customer reviews

package dimensions

model

Available On

Our Top 3 Picks

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

Why we love it

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

Why we love it

STP Diesel Injector Cleaner 200ml - 3x200ml = 600ml

Why we love it

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

Related deals you might like for best diesel injector cleaner

Wynn's Formula Gold High Performance Diesel System Treatment 500ml

STP GST59200EN Diesel Injector Cleaner 200 ml,Packaging/label may vary

SYPRIN Diesel Cleaner 500ml - cleaning and maintenance of diesel fuel systems and motors I diesel cleaner additives for injector dpf particulate filter motor

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