Top 10 Catalytic Cleaner Fuel Additive – Automotive Replacement Catalytic Converters

As an Amazon Associate I earn from qualifying purchases.



1 Pack, DURA LUBE Severe Catalytic and Exhaust Treatment Emissions Test Catalytic Cleaner 16 fl. oz, HL-402409

DURA LUBE #ad - Helps lower tail pipe emissions. Use before or prior to replacing catalytic converter. Fit type: universal fit works on all enGINES. Protects catalytic system from oil poisons and maintains catalytic efficiency. Reduces phosphorus and zinc retention levels at catalyst inlet. Add when check engine light or error light is activateD.
BrandDURA LUBE #ad
ManufacturerDura Lube #ad
Height9.12 Inches
Length2.62 Inches
Width2.62 Inches
Part NumberHL-402409
WarrantyGuaranteed to Pass

2. Motorkote


Emissions Test, 1 Pack, 16 fl. oz, MK-10351, Motorkote Catalytic and Exhaust Treatment Emissions Control Catalytic Cleaner

Motorkote #ad - Protects catalytic system from oil poisons. Use before or prior to replacing catalytic converter. Use when warning light is activated. Reduces phosphorus and zinc retention levels at catalyst inlet. Helps clean oxygen o2 sensors, lowers tail pipe emissions, works great for P0420 Catalytic Converter Code.
BrandMotorkote #ad
ManufacturerMotorKote #ad
Height9.25 Inches
Length2.62 Inches
Width2.62 Inches
Part NumberMK-10351
WarrantySatisfaction Guarantee

3. Liqui Moly


Liqui Moly 8931 Catalytic-System Cleaner

Liqui Moly #ad - Special combination of additives for cleaning and removal of sediments and typical impurities in the intake system and combustion. Item package weight: 0299 kg. Item package dimension: 17. 6cm l x 5. 0cm w x 5. 0cm H. Catalytic-system.
BrandLiqui Moly #ad
ManufacturerLIQUI MOLY #ad
Height2.36 Inches
Length4.72 Inches
Weight0.53 Pounds
Width2.36 Inches
Part Number8931

4. Clean Engine Care


EGR Valve, Diesel Engine Emission Cleaner for Turbo Charger, Clean Engine Care Oxygen Sensor Cleaner Made in Germany Efficient Catalytic Converter Cleaner High-Performance Vehicle Cleaner for Gasoline

Clean Engine Care #ad - Easy-to-use o2 sensor cleaner: to add the emission cleaner to your vehicle, you simply have to pour it into the fuel tank. Suitable for gasoline and diesel engines: our versatile valve cleaner is designed to provide efficient oxygen sensor and catalytic converter cleaning to every car featuring a diesel or gasoline engine.

Unclog your catalytic converter: the emission cleaner can also be used as a catalytic converter cleaner to eliminate any deposits the cat converter may contain, keep it protected from heavy dirt, and increase its efficiency. Clean your exhaust system: when regularly used, EGR valve, catalytic converter, our emissions system cleaner will offer an effective cleanup to your oxygen sensor, and turbocharger to boost your vehicle's working condition.

Optimal lambda sensor operation: the high-performance oxygen sensor cleaner will remove the buildup dirt, soot, and carbon in your vehicle's o2 sensor to prolong its lifetime and optimize fuel consumption. Our oxygen sensor cleaner comes with a nozzle to make the filling procedure even easier.
BrandClean Engine Care #ad
ManufacturerClean Engine Care #ad
Weight0.75 Pounds
Part Number93265-98

5. ClearLover


ClearLover Auto Parts Engine Boost Up Cleaner Catalytic Converter Cleaner Fuel System Treatment Additive for Gasoline and Diesel Car 3Pcs

ClearLover #ad - There is no need to worry about leakage or evaporation. This product promises a refund if there is no effect. Portable size, 1 bottle at a time.

It is suggested to judge the effect after using several bottles according to the mileage of the car. Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions. Very convenient, add a bottle every time you refuel. Makes engines start easily and run smoothly; improves fuel economy and reduces emissions. Ultimate cleaning solution: no more exhaust system problem, the fuel injectors, the cleaner can also clean other parts like the oxygen sensor, cylinder heads, and others.
BrandClearLover #ad
ManufacturerClearLover #ad

6. Liqui Moly


300 ml, Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner

Liqui Moly #ad - Eliminates starting problems, hesitation and stalling. Better throttle response. Cleaner combustion. Smoother idling.
BrandLiqui Moly #ad
ManufacturerLiqui Moly #ad
Height0 Inches
Length0 Inches
Weight0.5 Pounds
Width0 Inches
Part Number2007

7. Cataclean


Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter

Cataclean #ad - Improves overall vehicle performance-including driveability issues such as power reduction, rough idle, hesitation, hard starts and lost fuel economy. Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel. Using cataclean can lower your total hydrocarbon emissions by up to 50 percent. Reduces carbon build-up in catalytic converter, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency. Not for use in 2-stroke or oil / gas mix engines.
BrandCataclean #ad
ManufacturerMr. Gasket Co. #ad
Height9.06 Inches
Length2.68 Inches
Weight1 Pounds
Width2.68 Inches
Part Number120007

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

9. CRC


CRC Guaranteed to Pass Emissions Test Formula, 12 Fluid Ounce

CRC #ad - Reduces emissions and improves performance in one tank full. Works with all gasoline and ethanol blended fuels. Powerful detergent additives super-clean the entire fuel system. Maximum allowable cleaning chemistry for superior results. Use every 3, 000 miles to improve fuel economy, acceleration and reduce emissions.
BrandCRC #ad
ManufacturerCRC #ad
Height2.18 Inches
Length8.26 Inches
Weight0.8 Pounds
Width3.54 Inches
Part Number05063
Warrantylimited warranty

10. Red Line


Red Line 60103 Complete SI-1 Fuel System Cleaner, Pack of 2, 15 Ounce, 15 Ounce

Red Line #ad - Contains synthetic upper cylinder lubricant. Reduces need for octane by up to two points. Safe for continual use. Use one bottle per tank for most effective treatment of neglected vehicle. Cleans to nearly 100 percent efficiency in one treatment.
BrandRed Line #ad
ManufacturerRed Line #ad
Part Number60103