Top 10 Engine Cleaner Additive – Engine & Oil Fluid Additives

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1. Liqui Moly


Liqui Moly 2037 Pro-Line Engine Flush, 500 Milliliters

Liqui Moly #ad - Simple to use. Gentle and rapid cleaning. Easy way to clean and flush the oil systems of gasoline and diesel engines. Compatible with catalytic converters. Neutral to seals and other materials installed in the engine.
BrandLiqui Moly #ad
ManufacturerLiqui Moly #ad
Height8 Inches
Length2.75 Inches
Weight1.05 Pounds
Width2.75 Inches
Part Number2037

2. Chevron


Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz.

Chevron #ad - Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor. Improves: cold start performance, and fuel stability for up to one year. Cleans, protects the entire fuel system fuel injectors, restores, carburetors, intake valves and combustion chambers. Reduces: rough idle, engine surge, hesitation, and spark plus fouling.
BrandChevron #ad
ManufacturerChevron #ad
Height3.3 Inches
Length9.4 Inches
Weight1 Pounds
Width3.5 Inches
Part Number65740
WarrantyLimited Warranty

3. Sea Foam


5.25 oz, Sea Foam IC5 Fuel Injector Cleaner

Sea Foam #ad - Adds lubricity to upper cylinders. Concentrated formula treats up to 25 gallons. Add to fuel to help clean fuel injectors and restore injector spray patterns. Safe for all types of gasoline fuel injection engines. Helps recover lost MPG and reduce exhaust emissions.
BrandSea Foam #ad
ManufacturerSea Foam Brands #ad
Height6 Inches
Length0 Inches
Width2 Inches
Part NumberIC5
WarrantySee manufacturer

4. Red Line


15 Oz Bottle, Gas and Injector Additive Treatment, Red Line 60103 Complete SI-1 Fuel System Cleaner

Red Line #ad - Designed to exceed expectations: Red Line complete SI-1 fuel system cleaner treatment for cleaning & preventing corrosion in fuel systems.

Why red line: established in 1979, Red Line products perform & protect better than any on the market no compromises. Perform & protect: fuel additive cleans injectors, valve & combustion chamber deposits with a powerful, carburetors, concentrated blend of high-temp and low-temp detergents. Easy to use: use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment. Efficient fuel burn: gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation.
BrandRed Line #ad
ManufacturerRed Line #ad
Height2 Inches
Length10 Inches
Weight0.6 Pounds
Width2.32 Inches
Part Number60103
WarrantyManufacturer Warranty



Treats 128 Gallons, Star Tron Enzyme Fuel Treatment, Concentrated Gas Formula 8 oz

STAR BRITE #ad - For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel. Concentrated formula #930xx is economical to use in large and small applications; safe for use in all engines including 2-cycle pre-mix. Cures and prevents ethanol fuel problems; helps prevent phase separation. Makes engines start easily and run smoothly; improves fuel economy and reduces emissions. Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions.
ManufacturerStar brite #ad
Height2 Inches
Length7 Inches
Weight0.53 Pounds
Width3 Inches
Part Number093008SS

6. Rislone


Conditioner and cleaner, 16.9oz Yellow, Rislone 4102 Concentrated Engine Treatment

Rislone #ad - Will not void manufacturer's new vehicle. Add to engine oil anytime. Quiets noisy lifters and valves. Reduces friction and wear. Removes and prevents sludge.
BrandRislone #ad
ManufacturerRislone #ad
Height7.6 Inches
Length1.9 Inches
Width3.4 Inches
Part Number4102

7. Rislone


Exhaust & Emissions System Cleaner, Rislone Cat Complete Fuel, Check Engine Light Medic

Rislone #ad - Works on all fuel injected, turbo, GTDI, direct injected, carbureted, Ecotec and EcoBoost engines. Exceeds EPA compliance performance criteria. Will not void manufacturer’s new vehicle warranty: Specifically designed and safe to use on vehicles which have oxygen sensors and catalytic converters.

Clean fuel and exhaust systems reduce excess exhaust hydrocarbon, CO and NOX emissions and saves gas. Increase power, but the fuel system as well. Works with gasoline, mileage and save gas: Cleans by not only the entire emissions and exhaust system, performance, ethanol and hybrid vehicles. Save on expensive fuel system and emission control repairs: Regular use every 5, 000 miles tunes-up the fuel, emissions and exhaust systems keeping them clean and preventing the CEL light from returning.
BrandRislone #ad
ManufacturerBar's Products #ad
Part Number4720
WarrantySee Manufacturer

8. Mercury Marine Mercruiser


12 Ounces 92-8M0047931, Mercury Marine Quickleen Engine and Fuel System Cleaner

Mercury Marine Mercruiser #ad - Quickleen for use as needed throughout the boating season. Use with quickare to prevent fuel breakdown and oxidation. Prevents engine knocking and piston seize-up as well as Extends spark plug life. 1 ounce treats 5 gallons - 12 ounce bottle treats 60 gallons. This product does not contain fuel stabilizers. Aggressive cleaners work to quickly and thoroughly remove carbon deposits from carburetors and injectors, spark plugs, intake valves, piston crowns, and cylinder heads.
BrandMercury Marine Mercruiser #ad
ManufacturerMercury Marine Mercruiser #ad
Height8.5 Inches
Length10.87 Inches
Width8.25 Inches
Part Number928M0047931

9. Chevron


Pack of 6, 12 oz, Chevron Techron High Mileage Fuel System Cleaner

Chevron #ad - Maximize fuel economy - Keeps engines clean, and protects from deposits that rob engine efficiency and reduce fuel economy. Techron high mileage fuel system cleaner is fully compatible and protective in all commercially available ethanol blends E10, E85, etc.

Techron high mileage fuel System Cleaner helps keep your engine humming, no matter how many roads your vehicle has traveled. Vehicles with higher mileage accumulation can suffer from the effects of age - including carbon build-up and corrosion in the fuel system. Restore power and performance - Restores lost power and performance by removing gum, varnish, and other fuel system deposits.

Protect the fuel system and fuel gauge sensor from various types of corrosion - Multiple corrosion inhibitors protect metal components both ferrous components like iron and steel, and non-ferrous components like copper and silver from the damaging effects of corrosion.
BrandChevron #ad
ManufacturerChevron #ad
Height8.9 Inches
Length3.16 Inches
Width2.66 Inches
Part Number266711163-6PK
WarrantyLimited Warranty

10. zMAX


12 oz. Each, zMAX 51-011, Engine & Fuel Formula Kit, Improving Gas or Diesel Mileage, Reduces Carbon Build-Up & Lubricates Metal Extending Life of Car or Truck, Easy to Use, Runs Efficiently

zMAX #ad - From local repair shop mechanics to major car dealership groups, our formula is road tested and mechanic trusted. Fuel conditioner: pour zmax fuel formula in the fuel tank to lubricate and maintain a clean fuel injector system. It improves fuel efficiency and performance and conditions the pumps and nozzles reducing carbon residue from the valves or pistons.

Proven and trusted for over 80 years, zMAX helps save money at the pump and extends your engine’s life. Extend the life of your vehicle: zmax engine & fuel formulas are simple and easy to use. Engine efficiency: add zmax engine formula to gain efficient combustion resulting in more power. Micro-lubrication soaks into metal surfaces, which improves lubricity and reduces carbon deposit build-up while boosting performance and protecting vital vehicle parts.

Trusted by professionals & dealerships: stock zmax in your garage to treat your car like a professional. Use the engine treatment at your routine oil change or every 6k miles to reduce engine wear, lower emissions and keep your engine running smoothly. Zmax is eco-friendly and usa-made! reputable quality and performance: zmax is proud to be the Official Micro-lubricant of Speedway Motorsports.
BrandzMAX #ad
ManufacturerzMAX #ad
Height8.5 Inches
Length7 Inches
Width3.5 Inches
Part Number51-011