10 Best Diesel Additives in The UK

Last updated on 07/08/2025

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

Why We Love It

Boosts fuel and engine performance.
Ideal for extensive diesel use.
Ensures customer satisfaction guarantee.

Main Highlights

Inexpensive Quality Product: Hydra DBP-100 is a diesel additive that helps in Diesel cleaning. This fuel injector cleaner turns the cheapest fuel into premium fuel, but at a much better cost than buying at a filling station. Perfect for cold starting, smoother engine with better pick-up with reduced diesel knock, smoke and harmful emissions.
Extensive use: DBP-100 DIESEL FUEL INJECTOR CLEANER is for diesel engines. It is a diesel cleaner and fuel stabiliser, that contains cetane booster, and lubricants. It also contains detergents that clean fuel lines, pumps, injectors, fantastic turbo diesel cleaner, EGR valves, helps keep DPF clean
Exceptional Performance: Hydra DBP-100 is a high performance cleaning diesel Injector additive. Hydra uses polyetheramine, which creates the best diesel injector cleaner; that removes existing carbon deposits and prevents new formation. It helps restore engine performance and power to as new.
Perfect Lubricant: The dpf cleaner diesel and regenerator helps in decreased fuel pump, injector and cylinder wear issues. It is low in sulphur and works at low temperatures. The diesel injector cleaner also helps to improve fuel economy. Giving an HFRR wear profile of less than 300.
Customer Satisfaction: Hydra DBP-100 ensure 100% customer satisfaction for all their products. In case of any query related to the diesel injector cleaner, feel free to contact us. We will try providing a solution to our best capacity.

WOL WORLD OF LUBRICANT

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

5% Off

Why We Love It

Restores engine performance effectively.
Cleans and lubricates fuel system.
Reduces emissions and fuel consumption.

Main Highlights

DIESEL FUEL SYSTEM CLEANER Improves fuel stability and reduce diesel emission and restore engine performance. Also help to keep both the injectors and fuel system clean and efficient.
REMOVES ALL TYPES OF DEPOSITS and contaminations and removes moisture from the fuel system. Cleans injector nozzles, inlet valves and combustion chamber. Increase performance and prolonged life span creating the most benefits from your car.
RESTORES ENGINE POWER and reduces fuel consumption. Also forms ceramic anti-wear coating on the fuel equipment parts. Help to lubricate the pumps and injectors and compensate for the reduced lubrication of low sulphur diesel.
DIESEL INJECTOR CLEANER AND FUEL STABILIZER cleans and restores diesel particulate filters and hastens the speed of soot burn-out, eliminating high temperature requirements.
CAR CARE This Diesel fuel additive is specialized fuel injector cleaner, carbon deposit remover, fuel lubricant and stabilise diesel fuel that guarantees low fuel consumption with high wear resistance.

Millers Oils 2 X Diesel Power Ecomax 500ml, Fuel Additive Treatment

Why We Love It

Boosts vehicle performance significantly.
Ensure cleaner, efficient combustion.
Reliable brand in auto accessories.

Main Highlights

Millers Oils 2 X Diesel Power Ecomax 500ml Fuel Additive Treatment
Brand : Millers Oils
Product type: AUTO ACCESSORY

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)

Why We Love It

Transforms low-quality diesel instantly.
Improves engine performance effectively.
Reduces harmful exhaust emissions.

Main Highlights

EXCEPTIONAL HIGH-PERFORMING SUPER DIESEL FUEL. AR6900-D MAX converts low-quality supermarket diesel into high-performing Super Diesel Fuel using a carefully selected blend of pure 2-EHN cetane improver, multiple detergents, ester lubricant, stabiliser and combustion catalyst.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Diesel Fuel. 2 x 250ML bottle treats up to 500L of fuel.
TRANSFORMS ALL DIESEL ENGINES GUARANTEED. Improved Cold Start, Eliminates Diesel Knock, Fuel System Cleaner, Fuel Injector Cleaner, Carbon Cleanr, DPF Cleaner, EGR Valve Cleaner, CAT Cleaner, Turbo Cleaner and Exhaust cleaner.
MAXIMUM ENGINE PERFORMANCE AND FUEL ECONOMY. This diesel additive maintains & improves engine pickup, performance and fuel economy. This diesel additive also lowers harmful exhaust emissions and exhaust particulates.
RESOLVES ENGINE PROBLEMS. Multiple detergents and post-combustion fuel-borne catalysts deliver a proprietary blend of Professional Grade Cleaning. Now you can reduce the chance of engine problems while enjoying a smoother and more responsive engine.
CLASS LEADING CETANE IMPROVER AND ESTER LUBRICANT using the highest purity 2-EHN and proprietary ester lubricant delivering below 290 on the HFRR scar wear test.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this diesel cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

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

25% Off

Why We Love It

Cleans and restores performance.
Lowers exhaust emissions.
Reduces rough idling.

Main Highlights

STP Diesel Bundle contains STP Diesel Injector Cleaner 200ml and STP Ultra 5-in-1 Diesel System Cleaner 400ml
Cleans & Unclogs: Powerful STP Diesel Injector Cleaner clears dirty injectors with just one treatment
Restores Performance: STP Ultra 5-in-1 System Cleaner is our most advanced diesel formula, helping to remove deposits and clear dirty injectors
Lowers Emissions: A cleaner engine may mean less exhaust emissions and lower fuel consumption
For All Diesel Engines: Suitable for all diesel engines including DI, IDI and common rail, and catalytic converters
Quick & Easy: Simply pour the entire bottle of STP Diesel Injector Cleaner or STP Diesel System Cleaner into a full tank
Reduces Rough Idling: For a smoother engine experience

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

10% OffFree Shipping

Why We Love It

Improves engine performance instantly.
Reduces fuel consumption effectively.
Protects against oxidation.

Main Highlights

✅ IMPROVES COMBUSTION FOR OPTIMAL ENGINE PERFORMANCE: This high-performance diesel treatment is formulated to enhance combustion efficiency immediately upon use. The powerful blend of active ingredients optimises the fuel-to-air ratio, allowing for a cleaner and more complete burn inside the engine. As a result, the engine runs more smoothly and efficiently, leading to improved throttle response and faster acceleration. Enhanced combustion also contributes to a reduction in harmful emissions and particulate matter, resulting in a cleaner exhaust. This makes it particularly effective for vehicles that operate under demanding conditions, where peak engine performance is essential.
✅ REDUCES FUEL CONSUMPTION FOR COST-EFFICIENT DRIVING: By promoting more complete combustion, this treatment directly contributes to a reduction in fuel consumption. It maximises the energy extracted from each litre of diesel, helping the engine to deliver better mileage without compromising performance. Whether used in long-distance driving or frequent short trips, this product supports fuel efficiency by optimising the way diesel is burned. The result is lower fuel costs over time and less frequent refuelling. Regular application helps maintain this improved fuel economy, making it a smart choice for fuel-conscious drivers and fleet operators alike.
✅ REDUCES BLACK SMOKE FOR CLEANER EMISSIONS: This advanced diesel system treatment addresses one of the most visible signs of inefficient fuel use: black smoke. By improving the combustion process, the treatment drastically reduces unburned hydrocarbons that manifest as dark exhaust. This contributes not only to a cleaner vehicle but also to a more environmentally friendly operation. Vehicles treated with this formula emit noticeably less smoke, which can be a critical factor in passing emission tests or complying with urban environmental regulations.
✅ PROTECTS THE FUEL SYSTEM FROM OXIDATION AND CORROSION: The formula includes special additives designed to shield the fuel system from the damaging effects of oxidation and corrosion. Diesel engines are particularly susceptible to water contamination and fuel degradation, which can lead to rust, corrosion, and the formation of sludge within the fuel tank and injection system. This treatment provides a protective barrier that inhibits these processes, extending the lifespan of fuel components such as injectors, pumps, and lines. It is especially beneficial in vehicles that are not used regularly, where stagnant diesel may pose a greater risk.
✅ TREATS UP TO 70 LITRES WITH ONE 500ML BOTTLE: The concentrated nature of this formula ensures that a single 500ml bottle is sufficient to treat up to 70 litres of diesel fuel. This high-yield ratio makes it a cost-effective solution for those looking to maintain peak engine performance without frequent applications. Suitable for cars, vans, trucks, and other diesel-powered machinery, this treatment integrates seamlessly into routine maintenance schedules. Its easy-to-use format allows it to be poured directly into the fuel tank, ensuring fast action and visible results.

Millers Oils Diesel Power Ecomax Fuel Additive Treatment 500ml 0.5L NEW IMPROVED

Wynn's Diesel Turbo Cleaner - Removes Carbon Build-Up & Frees Sticking Vanes - Cleans Diesel Oxidation Catalyst & EGR Valve - Restores Engine Power & Reduces Soot Emissions - 500ml

Free Shipping

Why We Love It

Clears blocked diesel turbochargers efficiently.
Improves engine power significantly.
Extends turbo and catalyst life.

Main Highlights

✅ CLEARS BLOCKED DIESEL TURBOCHARGERS: Designed to effectively remove carbon build-up and free sticking vanes without the need for dismantling, this powerful formula ensures optimal performance of diesel turbochargers. Over time, carbon deposits accumulate on the turbine, leading to reduced efficiency and potential turbocharger failure. By dissolving these stubborn residues, the product restores proper airflow, allowing the turbo to function smoothly. The seamless operation of the turbocharger translates into improved acceleration, fuel efficiency, and overall vehicle performance.
✅ REMOVES RESIDUES FROM DIESEL OXIDATION CATALYST & CLEANS EGR VALVE: Residue buildup in the Diesel Oxidation Catalyst (DOC) and the Exhaust Gas Recirculation (EGR) valve can significantly impact engine efficiency and emissions. This advanced cleaning solution effectively dissolves deposits, ensuring these essential components remain free from obstructions. The DOC plays a crucial role in reducing harmful emissions, while the EGR valve helps control nitrogen oxide levels. When clogged with soot and carbon deposits, both systems become less effective, leading to increased fuel consumption and reduced engine efficiency.
✅ RE-ESTABLISHES ENGINE POWER & THROTTLE RESPONSE: A clogged turbocharger and EGR valve can severely hinder an engine’s performance, leading to sluggish acceleration and power loss. This specialised cleaning formula helps restore engine power by removing accumulated deposits that interfere with combustion efficiency. By ensuring optimal airflow and fuel combustion, the engine regains its responsiveness, delivering smooth acceleration and improved throttle control. This is particularly beneficial for diesel vehicles that experience performance deterioration due to carbon buildup.
✅ EXTENDS TURBO & DIESEL OXIDATION CATALYST LIFESPAN: The buildup of soot and carbon deposits can significantly shorten the lifespan of turbochargers and Diesel Oxidation Catalysts, leading to costly repairs or replacements. This treatment not only cleans but also helps protect these vital components, ensuring they remain in optimal working condition for an extended period. By maintaining cleaner turbo and DOC systems, it prevents premature wear and degradation, reducing the risk of expensive mechanical failures.
✅ COMPATIBLE WITH ALL DIESEL ENGINES & BIODIESEL UP TO B30: Designed for versatility, this cleaner is suitable for all diesel engines and compatible with diesel fuels, including biodiesel blends up to B30. It provides a hassle-free solution for maintaining turbocharger and engine cleanliness without requiring extensive mechanical intervention. Simply add the recommended dosage to the fuel tank for a thorough cleaning effect that works while driving. The formulation is safe for all after-treatment systems, ensuring it does not cause damage to components such as catalytic converters, diesel particulate filters, or EGR valves.

Wynn's High-Performance Diesel Fuel System Treatment - Formula Gold Improves Engine Combustion & Acceleration - Reduces Fuel Consumption - Safe for All Diesel Engines - 500ml

Free Shipping

Why We Love It

Improves engine performance instantly.
Lowers fuel consumption efficiently.
Reduces harmful emissions effectively.

Main Highlights

✅ IMPROVES COMBUSTION FOR BETTER PERFORMANCE AND ACCELERATION: Designed to immediately enhance combustion, this high-performance diesel fuel system treatment improves the way in which fuel burns inside the engine. By promoting a more complete and efficient combustion process, it leads to improved throttle response and smoother acceleration. This results in a more dynamic driving experience, reducing hesitation and engine lag. Additionally, a more efficient burn reduces engine noise, making diesel engines operate more quietly and smoothly
✅ REDUCES FUEL CONSUMPTION FOR COST-EFFECTIVE DRIVING: By ensuring a cleaner and more efficient fuel system, this treatment helps lower fuel consumption. Deposits and impurities inside the fuel injectors can hinder proper fuel atomisation, leading to increased fuel usage. This advanced formula dissolves and prevents these deposits, allowing the engine to run at optimal efficiency, which translates into noticeable fuel savings. For frequent drivers or those looking to maximise fuel economy, this treatment provides a practical and effective solution to get the most mileage out of every tank.
✅ LOWERS HARMFUL EMISSIONS FOR A CLEANER EXHAUST SYSTEM: Designed to actively reduce carbon monoxide (CO) and hydrocarbon (HC) emissions, this diesel treatment contributes to cleaner exhaust gases. By promoting a more complete fuel burn, it significantly lowers unburned fuel residues that are released into the environment. This makes it particularly beneficial for vehicles undergoing emission testing or MOT inspections, helping engines comply with stricter environmental standards. The reduction of black smoke is another key advantage, improving air quality and making diesel engines more eco-friendly.
✅ CLEANS AND PROTECTS THE FUEL INJECTION SYSTEM FOR LONG-TERM ENGINE HEALTH: A clean fuel system is essential for optimal engine performance. This diesel fuel system treatment thoroughly cleans fuel injectors, preventing clogging and removing deposits that can lead to inefficiencies. By maintaining a clean injection system, fuel delivery is more precise, ensuring proper combustion and reducing engine wear. Additionally, the protective formula helps shield the fuel system from oxidation and corrosion, prolonging the lifespan of critical components.
✅ SAFE FOR ALL DIESEL ENGINES AND AFTER-TREATMENT SYSTEMS: Formulated to be completely safe for all modern and older diesel engines, this treatment is compatible with common-rail and direct-injection diesel systems. It does not harm after-treatment systems such as diesel particulate filters (DPF) or catalytic converters. The anti-corrosion properties help prevent rust and deposit buildup in the fuel system, ensuring long-term engine health. For best results, it is recommended to use this additive in every third tank of fuel.

LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1

11% OffFree Shipping

Why We Love It

Smoother engine performance guaranteed.
Certified effectiveness with TÜV Thüringen.
Extends engine's lifespan significantly.

Main Highlights

SMOOTHER ENGINE PERFORMANCE FROM VERY FIRST USE: An engine additive formulated with high-tech ceramic compounds, high thermal resilience. Additive ensures smoother-running engine, extending the engine’s lifespan. Can be used with manual & automatic transmissions. Not suitable for use with wet clutches.
LOWER FUEL CONSUMPTION and diminished emission of pollutants due to smoother engine operation.
EASY TO ADD DURING OIL CHANGES: The 300 ml bottle is sufficient for up to 5 liters of engine oil. Shake well before use and add to fresh oil. Can be mixed with all gear & engine oils on the market. Long-lasting performance, up to 50,000 km.
CERTIFIED EFFECTIVENESS proven by TÜV Thüringen: Chemical components in Cera Tec smooth out rough surfaces, the ceramic particles fill in uneven surface imperfections. Prevents direct contact of all metal parts, reducing friction and wear & tear. Turbo & Cat tested.
EVERYTHING THAT DRIVES WORKS BETTER WITH LIQUI MOLY: We manufacture over 4,000 products: engine oils, additives, vehicle care, chemical servicing and repair, adhesives and sealing products. Our products are currently distributed to over 150 countries worldwide. They are popular everywhere, ensuring a superior driving experience and improved engine performance.

8.7

Excellent

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We scanned 561 products

We reviewed these offers relevant to the Diesel Additives within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like HYDRA, WOL WORLD OF LUBRICANT, Millers Oils, Archoil, STP, Wynn's, Liqui Moly, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Diesel Additives in the market, we considered we took a deep dive into 2806 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is HYDRA DPB-100 Diesel Power Blast - Diesel Fuel System Cleaner | Diesel Injector Cleaner with Diesel Fuel Additive | 1 litre treats 1,000L. We love many things about this product by HYDRA. What sets it apart from the competition is Boosts fuel and engine performance. , Ideal for extensive diesel use. , Ensures customer satisfaction guarantee.
The best value product for most shoppers and where user satisfaction is continuously the highest is WOL Diesel Additive Injector Cleaner Liqui Moly Super Diesel Additive 250ml - Fuel System Cleaner - DPF Cleaner Diesel 1806 - Diesel Particulate Filter Cleaner (3 UNIT) by WOL WORLD OF LUBRICANT based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Diesel Additives and the best cost-to-value ratio is 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 UKat STP with a 25% discount.
Our list of the best Diesel Additives is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Diesel Additives in The UK

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We scanned 561 products

We concluded that: