Automotive PaintAdditivesAdvance Auto Parts ShopATV / UTV Oils & FluidsAutomotive Bulk BuysAutomotive Cleaners & DegreasersBoat CleanersBulk Automotive FluidsCar WashCar Wash SuppliesEngine & Powertrain Replacement PartsExhaust Parts & Emissions PartsExterior Car DetailingFarm and Agriculture Bulk BuysInterior Car DetailingJeep Winches & RecoveryLIQUI MOLYMaintenance EquipmentMotor OilMotor Oil, Fluids & Additives on Advance Auto Parts ShopMotorcycle Oils & FluidsRoad Trip Oil, Fluids & FiltersSuperTechTruck and Fleet Bulk BuysYamalube
Sort by|
Automotive PaintAdditivesAdvance Auto Parts ShopATV / UTV Oils & FluidsAutomotive Bulk BuysAutomotive Cleaners & DegreasersBoat CleanersBulk Automotive FluidsCar WashCar Wash SuppliesEngine & Powertrain Replacement PartsExhaust Parts & Emissions PartsExterior Car DetailingFarm and Agriculture Bulk BuysInterior Car DetailingJeep Winches & RecoveryLIQUI MOLYMaintenance EquipmentMotor OilMotor Oil, Fluids & Additives on Advance Auto Parts ShopMotorcycle Oils & FluidsRoad Trip Oil, Fluids & FiltersSuperTechTruck and Fleet Bulk BuysYamalube
Pass Emissions(255)
Uses item details. Price when purchased online
Rollback Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz From $19.54
Sponsored
From$1954
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
7984.2 out of 5 Stars. 798 reviews
2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner $29.99
Sponsored
$2999
current price $29.992X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
394 out of 5 Stars. 39 reviews
Dura Lube Severe Fuel System Cleaner Fuel Additive, Fights Ethanol in All Gasoline Vehicles 16oz From $10.88
Sponsored
From$1088
Dura Lube Severe Fuel System Cleaner Fuel Additive, Fights Ethanol in All Gasoline Vehicles 16oz
2364.6 out of 5 Stars. 236 reviews
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz From $15.97
Sponsored
From$1597
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz
2434.8 out of 5 Stars. 243 reviews
CRC Emissions Test Fuel System Treatment – Advanced Formula – 12 oz – for Cars and Trucks
CRC Emissions Test Fuel System Treatment – Advanced Formula – 12 oz – for Cars and Trucks
504.4 out of 5 Stars. 50 reviews
Catalytic converter cleaner high quality pass emissions test cleans catalyst carbon build-up MotorPower Care $19.94
$1994
current price $19.94Catalytic converter cleaner high quality pass emissions test cleans catalyst carbon build-up MotorPower Care
964 out of 5 Stars. 96 reviews
Clearance Yunuuuoa 1 Packs Catalytic Converter Cleaner Fuel Additive for Engine Performance Emissions Test Pass Restore Efficiency Clean O2 Sensor Exhaust System Treatment From $3.89
5 options
Available in additional 5 optionsFrom$389
Yunuuuoa 1 Packs Catalytic Converter Cleaner Fuel Additive for Engine Performance Emissions Test Pass Restore Efficiency Clean O2 Sensor Exhaust System Treatment
Rollback Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz From $19.54
5 options
Available in additional 5 optionsFrom$1954
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
7984.2 out of 5 Stars. 798 reviews
Top rated for fuel economy STP 1 Tank Tune Up Fuel Additive – 12 Fl Oz From $15.97
4 options
Available in additional 4 optionsFrom$1597
STP 1 Tank Tune Up Fuel Additive – 12 Fl Oz
2364.7 out of 5 Stars. 236 reviews
2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner $29.99
$2999
current price $29.992X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
394 out of 5 Stars. 39 reviews
100+ bought since yesterday Lucas Oil 10020 Fuel Treatment 5.25 Ounce From $5.78
Sponsored
From$578
Lucas Oil 10020 Fuel Treatment 5.25 Ounce
17364.8 out of 5 Stars. 1736 reviews
Dura Lube Severe Fuel System Cleaner Fuel Additive, Fights Ethanol in All Gasoline Vehicles 16oz From $10.88
5 options
Available in additional 5 optionsFrom$1088
Dura Lube Severe Fuel System Cleaner Fuel Additive, Fights Ethanol in All Gasoline Vehicles 16oz
2364.6 out of 5 Stars. 236 reviews
EZ Pass Emissions Treatment Automotive Additive Catalytic & Exhaust Cleaner 16 fl oz $21.48 $1.34/fl oz
$2148
current price $21.48$1.34/fl oz
EZ Pass Emissions Treatment Automotive Additive Catalytic & Exhaust Cleaner 16 fl oz
LIQUI MOLY Engine Oil Additive - 2020 $18.46
$1846
current price $18.46LIQUI MOLY Engine Oil Additive - 2020
75 out of 5 Stars. 7 reviews
STP 16oz Exhaust and Emissions System Cleaner Fuel Additive $14.87 92.9 ¢/oz
$1487
current price $14.8792.9 ¢/oz
STP 16oz Exhaust and Emissions System Cleaner Fuel Additive
1034.7 out of 5 Stars. 103 reviews
FHBVT Catalytic Converter Cleaner&100ml Exhaust System Fuel Additive Carbon Buildup Remover Cleans Oxygen Sensor EGR Valve Improves Fuel Efficiency Pass Emissions Smog Tests Car Maintenance
FHBVT Catalytic Converter Cleaner&100ml Exhaust System Fuel Additive Carbon Buildup Remover Cleans Oxygen Sensor EGR Valve Improves Fuel Efficiency Pass Emissions Smog Tests Car Maintenance
100+ bought since yesterday Lucas Oil 10020 Fuel Treatment 5.25 Ounce From $5.78
5 options
Available in additional 5 optionsFrom$578
Lucas Oil 10020 Fuel Treatment 5.25 Ounce
17364.8 out of 5 Stars. 1736 reviews
Molecure Catalytic Restore Emission Treatment Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive Reduces Carbon Buildup 12 oz Bottle, Treats Up to 20 Gallons $15.19
$1519
current price $15.19Molecure Catalytic Restore Emission Treatment Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive Reduces Carbon Buildup 12 oz Bottle, Treats Up to 20 Gallons
264.8 out of 5 Stars. 26 reviews
Premium Fuel Saver Device & Gas Mileage Booster, Fuel System Cleaner Additive for Cars Trucks SUVs, Improves MPG and Horsepower, Reduces Emissions, 1 Bottle Treatment
Premium Fuel Saver Device & Gas Mileage Booster, Fuel System Cleaner Additive for Cars Trucks SUVs, Improves MPG and Horsepower, Reduces Emissions, 1 Bottle Treatment
33.3 out of 5 Stars. 3 reviews
Hot Shot's Secret Diesel Extreme Fuel Additive, 32 oz for Diesel engines. From $18.25
Sponsored
From$1825
Hot Shot's Secret Diesel Extreme Fuel Additive, 32 oz for Diesel engines.
3024.7 out of 5 Stars. 302 reviews
Best cleaning solution for the diesel particulate filter DPF no disassembling needed fast and effective - MotorPower Care $45.49
Sponsored
$4549
current price $45.49Best cleaning solution for the diesel particulate filter DPF no disassembling needed fast and effective - MotorPower Care
63.8 out of 5 Stars. 6 reviews
Lucas Oil Emissions Clear 16 Ounce Bottle $22.45
$2245
current price $22.45Lucas Oil Emissions Clear 16 Ounce Bottle
75 out of 5 Stars. 7 reviews
Fuel Ox with Combustion Catalyst - 8oz treats up to 625 gallons - Reduces Emissions - Increases fuel economy $39.88
$3988
current price $39.88Fuel Ox with Combustion Catalyst - 8oz treats up to 625 gallons - Reduces Emissions - Increases fuel economy
Naxoaeo Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner Was $6.96
Naxoaeo Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
Catalytic Converter Cleaner Additive, Fuel System Treatment for Gasoline Engines, Reduces Emissions, Improves Engine Performance and Fuel Efficiency $7.77
$777
current price $7.77Catalytic Converter Cleaner Additive, Fuel System Treatment for Gasoline Engines, Reduces Emissions, Improves Engine Performance and Fuel Efficiency
Clearance Catalytic Converter Cleaner, QQZ Advanced Additive for Oxygen Sensor Restoration, 100ml Exhaust System Treatment to Pass Emissions Tests $6.19 Was $7.99
Now$619
current price Now $6.19, Was $7.99$7.99
Catalytic Converter Cleaner, QQZ Advanced Additive for Oxygen Sensor Restoration, 100ml Exhaust System Treatment to Pass Emissions Tests
Gumout Hybrid Fuel System Defender for Cars - Maximizes Economy and Reduces Emissions
Gumout Hybrid Fuel System Defender for Cars - Maximizes Economy and Reduces Emissions
Gasoline Fuel Additive Carbon Cleaner Engine Performance Booster Fuel System Cleaner Deposit Remover Improve Combustion Efficiency Reduce Emissions Engine Care Treatment Formula
Gasoline Fuel Additive Carbon Cleaner Engine Performance Booster Fuel System Cleaner Deposit Remover Improve Combustion Efficiency Reduce Emissions Engine Care Treatment Formula
STP Exhaust & Emissions System Cleaner and High Mileage Oil Treatment + Stop Leak Engine Oil Additive with Oil Change Wipes, 3-Piece Bundle $27.82
$2782
current price $27.82STP Exhaust & Emissions System Cleaner and High Mileage Oil Treatment + Stop Leak Engine Oil Additive with Oil Change Wipes, 3-Piece Bundle
BG MOA Motor Oil Additive 11oz (3 Pack) $41.00
Sponsored
$4100
current price $41.00BG MOA Motor Oil Additive 11oz (3 Pack)
424.7 out of 5 Stars. 42 reviews
Ethanol Shield Fuel Stabilizer, 24 oz. Keeps Fuel Fresh, Gasoline Treatment Fuel Additive That Protects Fuel System, Gas Stabilizer for Fuel Storage, Antioxidant and Anticorrosive $16.68 Was $20.78
Sponsored
Now$1668
current price Now $16.68, Was $20.78$20.78
Ethanol Shield Fuel Stabilizer, 24 oz. Keeps Fuel Fresh, Gasoline Treatment Fuel Additive That Protects Fuel System, Gas Stabilizer for Fuel Storage, Antioxidant and Anticorrosive
884.7 out of 5 Stars. 88 reviews
Snmubt 120ml Automotive Three-Way Catalytic Cleaner, Removes Carbon Deposits, Reduces Emissions, Improves Engine Performance
Snmubt 120ml Automotive Three-Way Catalytic Cleaner, Removes Carbon Deposits, Reduces Emissions, Improves Engine Performance
CaiYueKe Catalytic Converter Cleaner Additive for Cars Trucks SUVs, Fuel System Treatment, Engine Performance Restorer, Emissions Test Pass, Carbon Deposit Remover, Exhaust Cleaner
CaiYueKe Catalytic Converter Cleaner Additive for Cars Trucks SUVs, Fuel System Treatment, Engine Performance Restorer, Emissions Test Pass, Carbon Deposit Remover, Exhaust Cleaner
Clearance Catalytic Converter Cleaner and Oxygen Sensor Cleaner, 120ml Fuel Additive for Exhaust System, Combustion Chamber and Carbon Removal Cleaner to Help Pass Emissions Tests Was $7.99
Catalytic Converter Cleaner and Oxygen Sensor Cleaner, 120ml Fuel Additive for Exhaust System, Combustion Chamber and Carbon Removal Cleaner to Help Pass Emissions Tests
120ml Catalytic Converter Cleaner, Fuel System & Engine Cleaner, Reduces Emissions, Improves Fuel Efficiency, Removes Odor for Gas & Diesel Vehicles(1Pcs) From $5.94
5 options
Available in additional 5 optionsFrom$594
120ml Catalytic Converter Cleaner, Fuel System & Engine Cleaner, Reduces Emissions, Improves Fuel Efficiency, Removes Odor for Gas & Diesel Vehicles(1Pcs)
Ireezec Catalytic Converter Cleaner, Exhaust System Cleaner Fuel Additive for Engine, Oxygen Sensor Cleaner Carbon Deposit Remover for Car Truck SUV, Emissions Reducer Pass Smog Test $8.96
$896
current price $8.96Ireezec Catalytic Converter Cleaner, Exhaust System Cleaner Fuel Additive for Engine, Oxygen Sensor Cleaner Carbon Deposit Remover for Car Truck SUV, Emissions Reducer Pass Smog Test
DwellJoy Catalytic Converter Cleaner for Cars, Premium Fuel Additive to Remove Carbon Deposits, Clean Throttle Body & Carburetor, Restores Engine Performance & Reduces Emissions, 120ml From $19.59
From$1959
DwellJoy Catalytic Converter Cleaner for Cars, Premium Fuel Additive to Remove Carbon Deposits, Clean Throttle Body & Carburetor, Restores Engine Performance & Reduces Emissions, 120ml
Halons Catalytic converter cleaner additive | 120ml exhaust system carbon deposit remover | No-disassembly formula for gasoline engines | Enhances fuel efficiency, reduces emissions, protects $5.67
$567
current price $5.67Halons Catalytic converter cleaner additive | 120ml exhaust system carbon deposit remover | No-disassembly formula for gasoline engines | Enhances fuel efficiency, reduces emissions, protects
Clearance Gumesh Catalytic Converter Cleaner, Fuel System Treatment to Restore Engine Performance & Reduce Emissions - 120ml Bottle From $8.41
From$841
Gumesh Catalytic Converter Cleaner, Fuel System Treatment to Restore Engine Performance & Reduce Emissions - 120ml Bottle
Catalytic Converter Cleaner for Cars, Engine System Treatment, Emissions Reduction, Fuel System Cleaner, 120ml Bottle
Catalytic Converter Cleaner for Cars, Engine System Treatment, Emissions Reduction, Fuel System Cleaner, 120ml Bottle
120ml Catalytic Converter Cleaner - Gasoline Additive for Carbon Removal, Throttle & Carburetor Cleaning, Emissions Reduction - Pack of 2 From $6.47
From$647
120ml Catalytic Converter Cleaner - Gasoline Additive for Carbon Removal, Throttle & Carburetor Cleaning, Emissions Reduction - Pack of 2
Catalytic Converter Cleaner Engine Booster, Deep Clean Reduce Emissions Improve Performance for Gasoline, Flex Fuel Vehicles, Engine Maintenance, Fuel System Care, 120ml Was $7.79
Catalytic Converter Cleaner Engine Booster, Deep Clean Reduce Emissions Improve Performance for Gasoline, Flex Fuel Vehicles, Engine Maintenance, Fuel System Care, 120ml
TanSiDing Catalytic Converter Cleaner, Premium Fuel System Treatment, Removes Carbon Deposits, Restores Engine Power, Improves Fuel Efficiency, Gasoline Additive for Cars, Trucks, SUVs, 120ml Bottle From $10.96
From$1096
TanSiDing Catalytic Converter Cleaner, Premium Fuel System Treatment, Removes Carbon Deposits, Restores Engine Power, Improves Fuel Efficiency, Gasoline Additive for Cars, Trucks, SUVs, 120ml Bottle
Catalytic Converter Cleaner, Exhaust System Cleaner Fuel Additive, Cleans Oxygen Sensors, Reduces Emissions, Improves Fuel Economy, 100ml $4.39 Was $5.89
Now$439
current price Now $4.39, Was $5.89$5.89
Catalytic Converter Cleaner, Exhaust System Cleaner Fuel Additive, Cleans Oxygen Sensors, Reduces Emissions, Improves Fuel Economy, 100ml
Gallickan 120ml Automotive Catalytic Cleaner, Fuel System and Three-Way Converter, Removes Carbon Deposits, Reduces Emissions, Improves Engine Performance, for Car Truck SUV
Gallickan 120ml Automotive Catalytic Cleaner, Fuel System and Three-Way Converter, Removes Carbon Deposits, Reduces Emissions, Improves Engine Performance, for Car Truck SUV
Rapeiae Catalytic Converter Cleaner – Pass Emissions Test, Remove Carbon Deposits | Gasoline Additive for Cars, Trucks, SUVs | Easy Fuel Tank Application
Rapeiae Catalytic Converter Cleaner – Pass Emissions Test, Remove Carbon Deposits | Gasoline Additive for Cars, Trucks, SUVs | Easy Fuel Tank Application
Catalytic Converter Cleaner Fuel Additive 30ml for Gas Tank To Reduce Emissions Improve Engine Performance Increase Fuel Efficiency $4.42 Was $4.97
Now$442
current price Now $4.42, Was $4.97$4.97
Catalytic Converter Cleaner Fuel Additive 30ml for Gas Tank To Reduce Emissions Improve Engine Performance Increase Fuel Efficiency
Catalytic Converter Cleaner for Cars, 120ml Fuel Additive, Engine Carbon Deposits Remover, Exhaust System Cleaner, Gas Treatment for Automotive Maintenance, Improves Performance and Reduces Emissions
Catalytic Converter Cleaner for Cars, 120ml Fuel Additive, Engine Carbon Deposits Remover, Exhaust System Cleaner, Gas Treatment for Automotive Maintenance, Improves Performance and Reduces Emissions
15 out of 5 Stars. 1 reviews
Catalytic Converter Cleaner 30ml, Performance Enhancer for Emissions Standards, Breaks Down Carbon Deposits, Improves Engine Efficiency, Prolongs Component
Catalytic Converter Cleaner 30ml, Performance Enhancer for Emissions Standards, Breaks Down Carbon Deposits, Improves Engine Efficiency, Prolongs Component
Popular in Automotive Emission Control Products for Vehicle Maintenance
Related Products
ATP AT-205 Re-Seal Automotive Additive for Rubber Seals and Gaskets, 8 Ounce (2 Pack)
ATP AT-205 Re-Seal Automotive Additive for Rubber Seals and Gaskets, 8 Ounce (2 Pack)$38.99current price $38.99Leak Saver Direct Inject Acid Scavenger - Converts Acid to Synthetic Oil, for A/C Systems Up to 5 Tons - Made in The USA
Leak Saver Direct Inject Acid Scavenger - Converts Acid to Synthetic Oil, for A/C Systems Up to 5 Tons - Made in The USA$36.95current price $36.95Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz)
Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz)$89.90current price $89.90Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
Nitro Lubricants Carb & Choke Cleaner - 12oz Sensor Safe, Fast Clean (4-Pack)
Nitro Lubricants Carb & Choke Cleaner - 12oz Sensor Safe, Fast Clean (4-Pack)$41.99current price $41.99Red Line RL-2 Diesel Additive - 15oz. - 70303
Red Line RL-2 Diesel Additive - 15oz. - 70303$203.88current price $203.88Motor Medic Oil Stop Leak,12 oz. Size,Amber M2112
Motor Medic Oil Stop Leak,12 oz. Size,Amber M2112$10.77current price $10.77ATS Chemical 505 CRF Fuel System Cleaner (Bernie's Fuel Cleaner)
ATS Chemical 505 CRF Fuel System Cleaner (Bernie's Fuel Cleaner)$52.61current price $52.61Injector,Filler Tube Car 2 Ounce 1/4 Oil Dye Tool R12 R134a R22 Tool 2 Ounce Car Oil Dye Oil Coolant Filler Dye Tool 2 Pure Liquid Oil R22 Air Car 1/4 Pure Liquid Ories Yorten Multicolor
Injector,Filler Tube Car 2 Ounce 1/4 Oil Dye Tool R12 R134a R22 Tool 2 Ounce Car Oil Dye Oil Coolant Filler Dye Tool 2 Pure Liquid Oil R22 Air Car 1/4 Pure Liquid Ories Yorten Multicolor$18.49current price $18.49K-Seal ST5516 Permanent Coolant Leak Repair 16oz.
K-Seal ST5516 Permanent Coolant Leak Repair 16oz.$24.51current price $24.51AT-205 Automatic Transmission Re-Seal Automotive Additive Bottle 8 ounce
AT-205 Automatic Transmission Re-Seal Automotive Additive Bottle 8 ounce$20.41current price $20.41Hi-Gear LEAKS NO MORE 444ml Can Engine Oil Stop Leak
Hi-Gear LEAKS NO MORE 444ml Can Engine Oil Stop Leak$18.99current price $18.99U-View Detergent Concentrated Fuel Cleaner
U-View Detergent Concentrated Fuel Cleaner$29.50current price $29.50
