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.
Best Choice Liqui Moly 
LIQUI MOLY Petrol Injection Cleaner | 300 ml | Petroladititive | SKU: 2786 Highly effective combination of agents that cleans and protectsBest Value Liqui Moly 
Liqui Moly Fuel System Cleaner/Conditioner 500 ml Suitable for both gasoline and diesel enginesLiqui Moly 
LIQUI MOLY Cera Tec 21676 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Le SMOOTHER ENGINE PERFORMANCE FROM VERY FIRST USE: An engine additive formulated with high-tech ceramic compounds, high thFuel Doctor Chamber Pack- 1 Litre 
Fuel Doctor Chamber Pack- 1 Litre Nulon 
Nulon Petrol Fuel System Cleaner 500 ml Cleans injectors, fuel lines, fuel tank, inlet valves and manifolds in one tankfulLiqui Moly 
Liqui Moly Diesel Clean and Boost 1 Liter Removes deposits from the entire fuel systemSTA-BIL 
STA-BIL Fuel Stabiliser, 236 ml Keeps fresh fuel fresh for quick, easy starts after storageNulon Nulon Pro-Strength Diesel Fuel System Extreme Clean 500 ml Cleans and lubricates entire fuel system in one tankLiqui Moly Liqui Moly DI Jectron Direct Injection Cleaner 300 ml Cleans the injection system for improved performance11% Off Castrol Castrol Fuel Doctor Fuel Conditioner for Diesel, Petrol and Two-Stroke Fuel Systems - 1 Litre Fuel Doctor Fuel Conditioner is specifically formulated for Diesel, Petrol and Two-stroke fuel systemsNulon Nulon Diesel Fuel Detox 1 Liter Restores fuel economy and boosts engine performanceSTA-BIL STA-BIL Fast Fix Small Engine Treatment, 236 ml Eats away at gum and varnish that cause rough starts / no startsRislone Rislone Petrol Fuel System Treatment, 500 ml Complete fuel system cleanerSTA-BIL STA-BIL Fuel Stabiliser, 118 ml Keeps fresh fuel fresh for quick, easy starts after storageSTA-BIL STA-BIL Fuel Stabiliser, 473 ml Keeps fresh fuel fresh for quick, easy starts after storageChemtech
Chemtech Diesel Power Fuel Additive 300 ml Prevents and kills algae and bacteria in fuel lines and storage tanks14% Off Nulon Nulon Pro-Strength Diesel Turbo Cleaner 500 ml Improves combustion and restores engine powerChemtech Chemtech Diesel Power Fuel Additive 1 Litre Prevents and kills algae and bacteria in fuel lines and storage tanksRoyal Purple Royal Purple 18000 Max Atomizer Fuel Injector Cleaner - 6 oz. Restores fuel economyLiqui Moly Liqui Moly Diesel Purge Plus Pro-strength Fuel System Cleaner 500mL 2790 Brand Liqui Moly10% Off Nulon Nulon Pro-Strength Heavy Duty Diesel Engine Treatment 500mL HDDET Australia Made Reduces fuel and oil consumptionLiqui Moly Liqui Moly MoS2 Friction Reducer 300 ml Increases smooth operation and reduces friction and wearLiqui Moly LIQUI MOLY Octane Booster | 200 ml | Petroladititive | SKU: 21696 Increases the octane rating of petrolStanadyne 4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive Restores/Increase Horsepower: detergents clean deposits in the injection system40% Off Penrite Penrite Petrol Injector Cleaner Additive 375 ml Cleans blocked fuel injectors and carburettorsGumout Gumout 800001364 Regane Complete Fuel System Cleaner - 6 oz. Cleans gasoline direct injection (GDI) systems tooJohnsen's Johnsen's Fuel Stabilizer Petrol, 473 ml Designed to help keep fuel fresh and clean longer during storage periodsSTA-BIL STA-BIL Fuel Stabilizer - 16oz Great ProductGeneric FTC Decarbonizer Diesel Smoke and Carbon Remover - 1 Litre Wynn's Wynn's Lead Substitute - Protects Against Wear in Unleaded Petrol Engines - Prevents Oxidation, Fuel Degradation & Depos ✅ VALVE SEAT PROTECTION FOR UNLEADED PETROL ENGINES: Ensures optimal protection for valve seats in engines that run on uLiqui Moly Liqui Moly 2030 Pro-Line Gasoline System Cleaner, 500 ml, 16.91 Fl Oz (Pack of 1) Package Dimension : 2.24 " L x 2.24 " W x 7.96 " HLiqui Moly Liqui Moly Diesel Injector Cleaner With Anti-Knock Liqui Moly Diesel Injection Cleaner With Anti-Knock 250Ml - 2789The Liqui Moly Diesel Injection Cleaner with Anti-KnockChemtech Chemtech Diesel Power Fuel Additive 300 ml (Pack of 2) The information below is per-pack only20% Off Nulon Nulon Diesel Injector Cleaner 300 ml Specifically designed to clean diesel injectors and combustion chambersLiqui Moly LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue Better engine performance.Fit Type: UniversalLucas Oil LUCAS Fuel Treatment, 0.16 litre, Each Cleans and lubricates the fuel systemK&N K&N Performance+ Fuel System Cleaner: Restores Performance and Acceleration, 16 Ounce Bottle Treats up to 21 Gallons, 99 RESTORES PERFORMANCE: Cleans entire fuel system to help restore lost engine powerCost Effective Maintenance CRD Fuel Enhancer Diesel Additive BG BG 44k PLATINUM New Gasoline quality is inconsistent; And when gas at the pump varies in quality, the result is deposit buildup, inefficientSTA-BIL STA-BIL Marine Fuel Treatment and Stabiliser, 236 ml Removes water from fuel to help prevent fuel separationA SMOKE ASMOKE 100% Pure Fruit Wood Cherry Wood Pellets for Outdoor BBQ No Additives Solid Fuel Smoker Wood Pellets (2, 5lbs) 100% Pure Fruit &No Additives Wood: Made exclusively from high-quality cherry wood, delivering genuine fruitwood flavor.Royal Purple Royal Purple 11755 Max-Tane Total Diesel Fuel Performance - 20 oz. Cleans deposits from fuel injectors, carbs, combustion chambers, intake valves deposits and piston crownsWiley Fuel Additives: Chemistry and Technology STA-BIL STA-BIL Diesel Fuel Stabiliser, 946 ml Cleans and lubricates fuel injectors to improve performanceArchoil Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6oz) + AR6400-D Diesel Fuel System Cleaner… Includes AR6500 Diesel Treatment (40.6 oz)34% Off Penrite Penrite Pro Series Diesel Complete Clean + 500ml PSDCC0005 Penrite Pro Series Diesel Complete Clean+ 500ml Cleans fuel tank, lines, injectors, rails and inlet valves Protects & cl13% Off Penrite Penrite Diesel Enviro+ DPF Cleaner Additive 375 ml Formulated to clean blocked DPF'sGumout Gumout 510019 Fuel Injector Cleaner Removes carbon deposits from key engine partsLaser Laser 8021 Fuel & Additive Funnel - Diesel, Grey|Silver Outlet diameter: 24.5mm. For diesel fuel fillers only.Lucas Oil Lucas Oil Fuel Treatment - 1 Gallon (3.78L) #10013 Clear Yellow Cleans and lubricates the fuel systemSea Foam Sea Foam IC5 Fuel Injector Cleaner, 5.25 oz Add To Fuel To Help Clean Fuel Injectors And Restore Injector Spray PatternsChevron Chevron Protection Plus Powersports & Small Engine Fuel System Treatment 4 fl oz/118 mL K&N K&N Performance+ Diesel Cetane Booster: Improves Towing Power and Throttle Response, 12 Ounce Bottle Treats up to 35 Gal IMPROVES TOWING POWER: Helps breakdown and remove performance robbing deposits from the entire fuel systemStanadyne Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566 Made in the U.S.A. Restores/Increase Horsepower.Morey's Morey's Diesel Smoke Killer, Injection Cleaner, Fuel Stabiliser 1 Litre Cleans dirty injectors and keeps them clean46% Off Penrite Penrite Diesel Injector Cleaner Additive 375 ml Cleans blocked injectors and reduces nozzle blockagesHopkins Towing Solutions Hopkins Towing Solutions FloTool 10719 Capless Gas Tank Funnel,Yellow and Black, 1 Pack Ideal for quickly adding fuel additives13% Off Penrite Penrite Petrol Total System Cleaner Additive 375 ml Cleans fuel tank, lines, injectors, carburettors and inlet valvesTimeno Timeno 3Pcs Catalytic Converter Cleaner, Boost Up Catalytic Convertor Cleaner, Pipe Carbon Removal Cleaner Treatment Add 【Catalytic Converter Cleaner】Simply pour in your fuel tank.Makes engines start easily and run smoothly. Clean and protecGreen Planet Nutrients Green Planet Dual Fuel Starter Kit - 2 Hydroponic Base Nutrients and 2 Additives Green Planet Dual Fuel Starter Kit - 2 Hydroponic Base Nutrients and 2 AdditivesGeneric 6 X Penrite Enviro+DPF (Diesel Particulate Filters) Cleaner 375mL - ADDPFC375 (Six Pack) Cleans blocked DPF's Lowers DPF regeneration temperature Improves fuel economy and reduces CO2 emissions18% Off Cataclean Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converte Pass Emissions Tests with Confidence: Cataclean is specifically formulated to reduce carbon build-up and clean vital comJectse Jectse Portable -Proof Manual Oil Drum Pump for 20L Drums, Versatile Hand Fuel Pump for Automotive Additives, Stainless [EFFICIENT OIL EXTRACTION] Quickly extracts medium viscosity fluids like engine oil and transmission fluid with non-dripLiqui Moly LIQUI MOLY Speed Petrol Additive 1 Litre Petrol Additive Item No. 5105 Colourless For carburettor and injection enginesSTA-BIL STA-BIL 360 Marine Ethanol Treatment and Fuel Stabilizer - Prevents Corrosion - Helps Clean Fuel System for Improved in- Fuel System Cleaner - STA-BIL 360 Marine completely cleans the entire fuel system from fuel injectors to fuel pumps, andLucas Oil Lucas Oil Safeguard Ethanol Fuel Conditioner/12x1/ 16 Ounce Cleans injectors, valve seats, combustion chambers and other critical fuel componentsWiley Fuels and Fuel-Additives STA-BIL Sta-Bil Fuel Treatment Stabilizer 236 ml Helps keep gasoline fresh for up to 24 monthsFacet-Purolator Facet FEP289SV, Facet Cube 12 volt Fuel Pump Kit, 1/8 NPT, 4 to 7 psi Maximum Pressure Facet low pressure fuel pumps are compatible with gasoline, diesel, biodiesel, E85, blended alcohol and fuel additives.BERRYMAN SINCE 1918 Berryman 0316 Motor Tune Up for Gas and Diesel Easy Pour-in Can, 16-Ounce Improves fuel economy and increases injector lifeA SMOKE ASMOKE 100% Pure Fruit Wood Cherry Wood Pellets for Outdoor BBQ No Additives Solid Fuel Smoker Wood Pellets (1, 20lbs) 100% Pure Fruit &No Additives Wood: Made exclusively from high-quality cherry wood, delivering genuine fruitwood flavor.Generic Fuels Additive For Gasolines Engines - 60ML Car Fuels Injector Cleaner - System Cleaning Solution Restore Engine Perform Protect Your Engine: Dirt and deposits can damage your engine and reduce its performance. This car fuels treasure can prJDMSPEED New 12V Universal Electric Fuel Pump For Metal Solid Diesel or Petro 4-6 PSI EP014 100% NEW and Made with the Highest Quality Components AvailableFacet-Purolator Facet 476459N, Facet Cylindrical 12 volt Fuel Pump, 1/8 NPT, 6-8 psi Maximum Pressure Facet low pressure fuel pumps are compatible with gasoline, diesel, biodiesel, E85, blended alcohol and fuel additives.Liqui Moly LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Perfor Mixable with all commercially available motor oilsHutson Street Press Fuels and Fuel Additives for Highway Vehicles and Their Combustion Products LAP Lambert Academic Publishing Diesel Fuel Additives Diesel Fuel Additives17% Off Penrite Penrite Biocide Fuel Treatment Diesel, 1 Litre Provide effective anti-corrosion properties and contains a demulsifier to separate waterMANNOL Mannol DPF Cleaner 400 ml Effectively cleans and regenerates diesel particulate filters, improving their efficiencySpringer Chemical Additives for Gas Hydrates (Green Energy and Technology) Noyes Publications Chemical Additives for Fuels: Developments Since 1978 Bentham Science Publishers The Production of Biodiesel and Related Fuel Additives (Recent Advances in Renewable Energy Book 6) LAP LAMBERT Academic Publishing The Interest of combining an additive with fuel blends: The role of fuel additives YUEHISY Manual Fluid Pump, Portable Transfer Pump, 20L Drum Oil Pump for Engine, Gear, Transmission Fluid, Car Additives, Motor Versatile Usage: This hand oil drum pump is not only suitable for 20L drums but also ideal for transferring fluids withTriboTEX TriboTEX Oil Additive Car Engine Treatment: Add to Engine Oil - Makes High Mileage Cars Like New with a Synthetic Materi Contains synthetic nanoparticles developed with funding from the U.S. Department of Energy, NASA, & National Science FouLAP Lambert Academic Publishing Diesel Fuel Additives from Vegetable Oils Diesel Fuel Additives from Vegetable OilsMotul Motul Injector Care Petrol, Preventive Care Additive for Petrol Engines, Prevents Smoke, More Power, Less Consumption an Nourishing fuel additive for petrol engines (with injection/carburettor, with/without charging, with/without catalytic cFuel Additives for Internal Combustion Engines: Recent Developments Facet-Purolator New Cylindrical Solid State Fuel Pump 12V, 2.75-4Psi, 60cm Min Dry Lift, 34 Gph Facet electronic fuel pumps are designed, engineered and manufactured in the USA to the highest standards of qualityChemical Industry Press Fuel Additive Production and Application of Technology(Chinese Edition) ViaGasaFamido ViaGasaFamido Fuel Additive Holder, Magnetic ABS Fuel Additive Bottle Organizer for Truck and RV Users [Wall Mountable] Easy to install on metal surfaces with strong magnets for convenient access to your fuel additives.ICON Group International, Inc. The 2026-2031 World Outlook for Fuel Additives ICON Group International, Inc. The 2026-2031 World Outlook for Specialty Fuel Additives The Law Library Fuels and Fuel Additives - Renewable Fuel Standards, 2013 (US Environmental Protection Agency Regulation) (EPA) (2018 Ed ICON Group International, Inc. The 2026-2031 World Outlook for Fuel Additives and Lubricants ICON Group International, Inc. The 2025-2030 World Outlook for Fuel Additives ICON Group International, Inc. The 2026-2031 World Outlook for Jet Fuel Additives ICON Group International, Inc. The 2026-2031 World Outlook for Aviation Fuel Additives ICON Group International, Inc. The 2026-2031 World Outlook for Fuel Additive Solutions ICON Group International, Inc. The 2026-2031 World Outlook for Bottled Fuel Additives