Best Fuel Additives For Petrol Engines of 2026

Last updated on 05/05/2026

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Cataclean Petrol | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml

Cataclean Petrol | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml

Improves fuel economy significantly.
Enhances engine performance.
Reduces emissions efficiently.

Main Highlights

VEHICLE MAINTENANCE > Safe for all engines, Cataclean original 8-in-1 engine cleaning system has been scientifically formulated to help your vehicle engine run better and last longer. Adding Cataclean as part of your regular vehicle maintenance routine to remove carbon build up improves fuel economy, reduce emissions, restores performance and protects catalytic converters
CLEANS & PROTECTS > Cataclean cleans, restores & protects the fuel tank and lines, fuel injectors, catalytic convertors, diesel particulate filters (DPF), exhaust gas recirculation valves, oxygen sensors, combustion chambers & intake and exhaust valves
REDUCE EMISSIONS > Regular use of Cataclean engine cleaning system can reduce emissions by up to 60% which can help prevent to MOT emissions failures and reduce air pollution
ENGINE PERFORMANCE > Using Cataclean fuel system cleaner restores engine performance, reduces vehicle maintenance costs and reduces fuel consumption, improving MPG fuel efficiency
USAGE > Add 500ml of Cataclean fuel additive per 15 litres of fuel every three months for optimum results

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Cataclean Petrol | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml

Improves fuel economy significantly.
Enhances engine performance.
Reduces emissions efficiently.

Main Highlights

VEHICLE MAINTENANCE > Safe for all engines, Cataclean original 8-in-1 engine cleaning system has been scientifically formulated to help your vehicle engine run better and last longer. Adding Cataclean as part of your regular vehicle maintenance routine to remove carbon build up improves fuel economy, reduce emissions, restores performance and protects catalytic converters
CLEANS & PROTECTS > Cataclean cleans, restores & protects the fuel tank and lines, fuel injectors, catalytic convertors, diesel particulate filters (DPF), exhaust gas recirculation valves, oxygen sensors, combustion chambers & intake and exhaust valves
REDUCE EMISSIONS > Regular use of Cataclean engine cleaning system can reduce emissions by up to 60% which can help prevent to MOT emissions failures and reduce air pollution
ENGINE PERFORMANCE > Using Cataclean fuel system cleaner restores engine performance, reduces vehicle maintenance costs and reduces fuel consumption, improving MPG fuel efficiency
USAGE > Add 500ml of Cataclean fuel additive per 15 litres of fuel every three months for optimum results

Value for Money

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

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

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.

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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

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.

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)

Transforms diesel into Super Fuel.
Ensures maximum engine performance.
Resolves potential engine problems.

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. 1L bottle treats up to 1,000L 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.

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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)

Transforms diesel into Super Fuel.
Ensures maximum engine performance.
Resolves potential engine problems.

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. 1L bottle treats up to 1,000L 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.

Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, 1L Treats 1,000L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (1Litre)

Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, 1L Treats 1,000L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (1Litre)

Exceptional premium fuel conversion.
Revitalizes any petrol engine.
Improves performance and economy.

Main Highlights

EXCEPTIONAL HIGH-PERFORMING PREMIUM PETROL FUEL. AR6900-P MAX converts low-quality supermarket petrol into high-performing premium petrol using a carefully selected blend of detergents, lubricants, stabiliser, and combustion improvers.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Petrol. 1L bottle treats up to 1,000L of fuel.
TRANSFORMS ALL PETROL ENGINES GUARANTEED. This petrol system cleaner, engine cleaner, carb cleaner and fuel treatment is suitable for all petrol engines and delivers ongoing Fuel System cleaning, Fuel Injector cleaner, GPF, EGR, CAT, (catalytic converter cleaner) Turbo cleaner and Exhaust cleaning.
MULTIPLE PERFORMANCE AND FUEL ECONOMY BENEFITS. This petrol cleaner additive for cars maintains engine performance and improve fuel economy. This petrol 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.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this petrol cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

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Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, 1L Treats 1,000L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (1Litre)

Exceptional premium fuel conversion.
Revitalizes any petrol engine.
Improves performance and economy.

Main Highlights

EXCEPTIONAL HIGH-PERFORMING PREMIUM PETROL FUEL. AR6900-P MAX converts low-quality supermarket petrol into high-performing premium petrol using a carefully selected blend of detergents, lubricants, stabiliser, and combustion improvers.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Petrol. 1L bottle treats up to 1,000L of fuel.
TRANSFORMS ALL PETROL ENGINES GUARANTEED. This petrol system cleaner, engine cleaner, carb cleaner and fuel treatment is suitable for all petrol engines and delivers ongoing Fuel System cleaning, Fuel Injector cleaner, GPF, EGR, CAT, (catalytic converter cleaner) Turbo cleaner and Exhaust cleaning.
MULTIPLE PERFORMANCE AND FUEL ECONOMY BENEFITS. This petrol cleaner additive for cars maintains engine performance and improve fuel economy. This petrol 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.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this petrol cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, Treats 500L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (500ml)

Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, Treats 500L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (500ml)

Converts low-quality into premium.
Highly concentrated formulation.
Resolves engine problems effectively.

Main Highlights

EXCEPTIONAL HIGH-PERFORMING PREMIUM PETROL FUEL. AR6900-P MAX converts low-quality supermarket petrol into high-performing premium petrol using a carefully selected blend of detergents, lubricants, stabiliser, and combustion improvers.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Petrol. 500ML bottle treats up to 500L of fuel.
TRANSFORMS ALL PETROL ENGINES GUARANTEED. This petrol system cleaner, engine cleaner, carb cleaner and fuel treatment is suitable for all petrol engines and delivers ongoing Fuel System cleaning, Fuel Injector cleaner, GPF, EGR, CAT, (catalytic converter cleaner) Turbo cleaner and Exhaust cleaning.
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.
MULTIPLE PERFORMANCE AND FUEL ECONOMY BENEFITS. This petrol cleaner additive for cars maintains engine performance and improve fuel economy. This petrol 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.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this petrol cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

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Archoil AR6900-P Max Advanced PETROL Fuel Additive Concentrate, Treats 500L of Fuel, Petrol Injector Cleaner, GPF Turbo EGR Valve Cleaner, Super Unleaded Convertor (500ml)

Converts low-quality into premium.
Highly concentrated formulation.
Resolves engine problems effectively.

Main Highlights

EXCEPTIONAL HIGH-PERFORMING PREMIUM PETROL FUEL. AR6900-P MAX converts low-quality supermarket petrol into high-performing premium petrol using a carefully selected blend of detergents, lubricants, stabiliser, and combustion improvers.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Petrol. 500ML bottle treats up to 500L of fuel.
TRANSFORMS ALL PETROL ENGINES GUARANTEED. This petrol system cleaner, engine cleaner, carb cleaner and fuel treatment is suitable for all petrol engines and delivers ongoing Fuel System cleaning, Fuel Injector cleaner, GPF, EGR, CAT, (catalytic converter cleaner) Turbo cleaner and Exhaust cleaning.
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.
MULTIPLE PERFORMANCE AND FUEL ECONOMY BENEFITS. This petrol cleaner additive for cars maintains engine performance and improve fuel economy. This petrol 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.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this petrol cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

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

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

Better fuel consumption performance.
Reduces greenhouse gas emissions.
Protects injectors against poor fuel.

Main Highlights

✅ [ IMPROVES FUEL ECONOMY ] Increase fuel economy by up to 10% due to Dipetane enabling a more efficient and complete fuel burn saving you money.
✅ [ AIDS DPF CLEAN ] Dipetane is a complete fuel system cleaner it helps keep DPF and Catalytic Convertors clean. Also cleans and keeps clean; valves, pistons, injectors, sensors and EGR valves. Helps engine last longer giving complete Engine Flush. Works alongside Ad Blue and compliments the AdBlue benefits.
✅ [ LESS SMOKE ] Dipetane will remove soot and other internal combustion deposits from the engine through the complete combustion process created by Dipetane meaning less exhaust smoke and restores performance.
✅ [ FOR ALL ENGINES ] Ideal for all vehicles, Diesel, Petrol or kerosene engines, our unique fuel treatment upgrades all fuels without additives. No detergents, no cetane enhancers, no octane boosters, and no heavy metals. Simply pour it into your fuel tank, and it gets to work right away.
✅ [ REDUCE EMISSIONS] Increases the air/fuel mixing rate, creates cleaner combustion, resulting in a substantial reduction in harmful emissions by up to 25%, positively contributing to the environment with less greenhouse gases entering the atmosphere and helping you pass your MOT.
✅ [ BEST VALUE ] Our large 1 Litre bottle treats 4 full tanks or 200 Litres of fuel (Petrol, Diesel or Kerosene). There are 10 marked divisions on the side of the 1 litre bottle, each division treats 20 litres of fuel with no danger of overdosing.

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

Better fuel consumption performance.
Reduces greenhouse gas emissions.
Protects injectors against poor fuel.

Main Highlights

✅ [ IMPROVES FUEL ECONOMY ] Increase fuel economy by up to 10% due to Dipetane enabling a more efficient and complete fuel burn saving you money.
✅ [ AIDS DPF CLEAN ] Dipetane is a complete fuel system cleaner it helps keep DPF and Catalytic Convertors clean. Also cleans and keeps clean; valves, pistons, injectors, sensors and EGR valves. Helps engine last longer giving complete Engine Flush. Works alongside Ad Blue and compliments the AdBlue benefits.
✅ [ LESS SMOKE ] Dipetane will remove soot and other internal combustion deposits from the engine through the complete combustion process created by Dipetane meaning less exhaust smoke and restores performance.
✅ [ FOR ALL ENGINES ] Ideal for all vehicles, Diesel, Petrol or kerosene engines, our unique fuel treatment upgrades all fuels without additives. No detergents, no cetane enhancers, no octane boosters, and no heavy metals. Simply pour it into your fuel tank, and it gets to work right away.
✅ [ REDUCE EMISSIONS] Increases the air/fuel mixing rate, creates cleaner combustion, resulting in a substantial reduction in harmful emissions by up to 25%, positively contributing to the environment with less greenhouse gases entering the atmosphere and helping you pass your MOT.
✅ [ BEST VALUE ] Our large 1 Litre bottle treats 4 full tanks or 200 Litres of fuel (Petrol, Diesel or Kerosene). There are 10 marked divisions on the side of the 1 litre bottle, each division treats 20 litres of fuel with no danger of overdosing.

2X Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

2X Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

Briggs & Stratton

Preserves fuel up to 3 years.
Protects against ethanol's corrosive effects.
Prevents engine gum and varnish.

Main Highlights

Keeps fuel fresh for up to 3 years
Fuel Fit not only keeps the carburettor clean for easy starting but now also protects against the corrosive effects of ethanol
Detergent ingredients to prevent gum and varnish build-up on engine parts
Metal de-activators which stop chemical reactions caused by dissolved metals in fuel
Corrosion inhibitor that forms a protective barrier on metal parts against harmful effects of ethanol-water mix

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Briggs & Stratton

2X Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

Preserves fuel up to 3 years.
Protects against ethanol's corrosive effects.
Prevents engine gum and varnish.

Main Highlights

Keeps fuel fresh for up to 3 years
Fuel Fit not only keeps the carburettor clean for easy starting but now also protects against the corrosive effects of ethanol
Detergent ingredients to prevent gum and varnish build-up on engine parts
Metal de-activators which stop chemical reactions caused by dissolved metals in fuel
Corrosion inhibitor that forms a protective barrier on metal parts against harmful effects of ethanol-water mix

TECHRON PEA Concentrate Plus Petrol Fuel Injector System Cleaner - 300ml

TECHRON PEA Concentrate Plus Petrol Fuel Injector System Cleaner - 300ml

Enhances fuel economy performance.
Offers powerful engine acceleration.
Strengthens engine corrosion resistance.

Main Highlights

Fuel economy performance
Engine power and acceleration
Cold start performance
Deposit-related knock and ping protection
Engine corrosion resistance

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TECHRON PEA Concentrate Plus Petrol Fuel Injector System Cleaner - 300ml

Enhances fuel economy performance.
Offers powerful engine acceleration.
Strengthens engine corrosion resistance.

Main Highlights

Fuel economy performance
Engine power and acceleration
Cold start performance
Deposit-related knock and ping protection
Engine corrosion resistance

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

15% OffLimited time deal

Boosts overall fuel system cleanliness.
Enhances engine performance noticeably.
Promotes superior fuel economy.

Main Highlights

Concentrated Cleaning Power - Cleans and conditions the entire fuel delivery system in one tank
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
Reduces Petrol consumption and exhaust emissions - promotes better fuel economy
For capless fuel tanks, please use manufacturer supplied funnel to pour STP additive in
Packaging may vary

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

15% OffLimited time deal

Boosts overall fuel system cleanliness.
Enhances engine performance noticeably.
Promotes superior fuel economy.

Main Highlights

Concentrated Cleaning Power - Cleans and conditions the entire fuel delivery system in one tank
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
Reduces Petrol consumption and exhaust emissions - promotes better fuel economy
For capless fuel tanks, please use manufacturer supplied funnel to pour STP additive in
Packaging may vary

Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

Briggs & Stratton

Preserves fuel up to 3 years.
Protects against ethanol corrosion.
Prevents gum, varnish build-up.

Main Highlights

Keeps fuel fresh for up to 3 years
Fuel Fit not only keeps the carburettor clean for easy starting but now also protects against the corrosive effects of ethanol
Detergent ingredients to prevent gum and varnish build-up on engine parts
Metal de-activators which stop chemical reactions caused by dissolved metals in fuel
Corrosion inhibitor that forms a protective barrier on metal parts against harmful effects of ethanol-water mix

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Briggs & Stratton

Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381

Preserves fuel up to 3 years.
Protects against ethanol corrosion.
Prevents gum, varnish build-up.

Main Highlights

Keeps fuel fresh for up to 3 years
Fuel Fit not only keeps the carburettor clean for easy starting but now also protects against the corrosive effects of ethanol
Detergent ingredients to prevent gum and varnish build-up on engine parts
Metal de-activators which stop chemical reactions caused by dissolved metals in fuel
Corrosion inhibitor that forms a protective barrier on metal parts against harmful effects of ethanol-water mix

We scanned 214 products

We reviewed these offers relevant to the Fuel Additives For Petrol Engines 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 Cataclean, Liqui Moly, Archoil, DIPETANE, Briggs & Stratton, TECHRON, STP, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Fuel Additives For Petrol Engines in the market, we considered we took a deep dive into 1071 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 Cataclean Petrol | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 2 x 500ml. We love many things about this product by Cataclean. What sets it apart from the competition is Improves fuel economy significantly, Enhances engine performance, Reduces emissions efficiently.
The best value product for most shoppers and where user satisfaction is continuously the highest is 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 by Liqui Moly based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Fuel Additives For Petrol Engines and the best cost-to-value ratio is STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UKat STP with a 15% discount.
Our list of the best Fuel Additives For Petrol Engines 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.