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Diesel Additive Comparison - June 2025
7 Best Diesel Additive In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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Overview: Need to improve performance and extend the life of your diesel engine? Look no further for reviews on the best diesel additives. Get an in-depth look at the pros and cons of each product to help you make an informed decision.
Wynn's Formula Gold High Performance Diesel System Treatment 500ml
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
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)
Model
Millers Oils 2 X Diesel Power Ecomax 500ml, Fuel Additive Treatment
Model
Dipetane 1L Fuel Additive | Improve Fuel Economy | Reduce Emmisions | DPF Cleaner Diesel and Petrol | Flush and clean Engine, Injector and EGR valve
Model
STP Diesel Fuel Additive Twin Pack
Brand
Wynn's
Brand
Wynn's
Brand
STP
Brand
Archoil
Brand
Millers Oils
Brand
DIPETANE
Brand
STP
Reviews
7,140 reviews
Reviews
2,415 reviews
Reviews
9,120 reviews
Reviews
2,208 reviews
Reviews
294 reviews
Reviews
3,558 reviews
Reviews
282 reviews
Features
Worth the money
9.6
Worth the money
9.4
Worth the money
9.4
Worth the money
9.4
Worth the money
9.1
Worth the money
9.4
Worth the money
8.6
Simple to use
9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.4
Simple to use
9.1
Simple to use
9.9
Simple to use
9.1
Distance
9.6
Distance
9.3
Distance
9.1
Distance
9.3
Distance
8.9
Distance
8.9
Distance
7.9
Tech Specs
manufacturer part number
12264
manufacturer part number
76401
manufacturer part number
-
manufacturer part number
AR6900 D
manufacturer part number
6204-1L
manufacturer part number
DP001
manufacturer part number
-
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 805 ratings 4.6 out of 5 stars
customer reviews
-
customer reviews
4.6 4.6 out of 5 stars 736 ratings 4.6 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 98 ratings 4.7 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 1, 186 ratings 4.6 out of 5 stars
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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9.5
2
Wynn's
Wynn's Formula Gold High Performance Diesel System Treatment 500ml
9.9Simple to use
9.4worth the money
9.3distance
Why we love it
Boosts engine performance instantly.
Reduces diesel fuel consumption.
Protects against engine wear.
Main highlights
Reduces fuel consumption
Reduces black smoke
Protects against oxidation & corrosion
One 500 ml bottle treats up to 70 liters of diesel
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
9.9Simple to use
9.4worth the money
9.1distance
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
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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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.
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.
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9.6 
9.7
1Wynn's
Restores engine performance efficiently.
