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1. CRC

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CRC Guaranteed to Pass Emissions Test Formula

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CRC #ad - Maximum allowable cleaning chemistry for superior results. Works with all gasoline and ethanol blended fuels. Use every 3, 000 miles to improve fuel economy, acceleration and reduce emissions. Powerful detergent additives super-clean the entire fuel system. Reduces emissions and improves performance in one tank full.
BrandCRC #ad
ManufacturerCRC #ad
Height2.18 Inches
Length8.26 Inches
Weight0.88 Pounds
Width3.54 Inches
Part Number05063
Model05063
WarrantyManufacturer Warranty

2. Chevron

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Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz.

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Chevron #ad - Automobiles and trucks use every 3, boats, rvs, water craft, lawn care, ATVs, dirt bikes, 000 miles or at your next oil change. Reduces: rough idle, engine surge, hesitation, and spark plug fouling.

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. Improves: cold start performance, and fuel stability for up to one year. All other gasoline engines use as needed motorcycles, etc. Cleans, restores, carburetors, protects the entire fuel system fuel injectors, intake valves and combustion chambers. Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor.
BrandChevron #ad
ManufacturerChevron #ad
Height9.45 Inches
Length2.65 Inches
Width3 Inches
Part Number67740
Model67740
Warrantyas listed

3. Cataclean

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

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Cataclean #ad - Reduces carbon build-up in catalytic converter, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency. Using cataclean can lower your total hydrocarbon emissions by up to 50 percent. Improves overall vehicle performance-including driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy. Not for use in 2-stroke or oil / gas mix engines. Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel.
BrandCataclean #ad
ManufacturerCataclean #ad
Height9.06 Inches
Length2.68 Inches
Weight1 Pounds
Width2.68 Inches
Part Number120007
Model120007
WarrantyLIMITED WARRANTY

4. Royal Purple

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Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722

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Royal Purple #ad - Fit type: Vehicle Specific. 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance. Increases horsepower an average of 2. 6 percent. Improves fuel economy an average of 3. 2 percent. Reduces hydrocarbon, nox and CO emissions on average 12, 13 and 18-percent respectively.
BrandRoyal Purple #ad
ManufacturerRoyal Purple #ad
Height9.73 Inches
Length2.63 Inches
Weight1.2 Pounds
Width2.63 Inches
Part Number11722
Model11722

5. Red Line

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

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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. Efficient fuel burn - gas treatment that enhances gasoline stability, while reducing the buildup of gum and varnish formation. No compromises. Easy to use - use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment. Perform & protect - fuel additive cleans injectors, carburetors, valve & combustion chamber deposits with a powerful concentrated blend of high-temp and low-temp detergents.
BrandRed Line #ad
ManufacturerRed Line #ad
Height2 Inches
Length10 Inches
Width2.32 Inches
Part Number60103
Model(60103)
WarrantyManufacturer Warranty

6. Cataclean

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Cataclean 120007-2PK Fuel and Exhaust System Cleaner, 16 fl. oz., Pack of 2

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Cataclean #ad - 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. Improves overall vehicle performance-including drivability issues such as power reduction, rough idle, hesitation, hard starts and lost fuel economy. 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
ManufacturerCataclean #ad
Height6 Inches
Length9 Inches
Weight2.01 Pounds
Width6 Inches
Part Number120007-2PK
Model120007-2PK

7. DURA LUBE

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DURA LUBE HL-40199-06 Severe Fuel System Cleaner, Single, 16-Ounce

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DURA LUBE #ad - Severe formulation cleans the entire fuel delivery system and helps aid the phase separation occuring in fuel. Restores injector flow. Helps aid loss of fuel economy, poor accelertion, engine hesitation and knock. Directions: add full contents to gas tank at least every 3, 000 miles; treats up to 42 gallons, highly recommended for all direct injection and turbo engines. Helps remove intake and exhaust stem gum.
BrandDURA LUBE #ad
ManufacturerDura Lube #ad
Height9.13 Inches
Length2.63 Inches
Width2.63 Inches
Part NumberHL-40199-06
ModelHL-40199-06

8. Liqui Moly

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Liqui Moly Truck Series Complete Fuel System Cleaner

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Liqui Moly #ad - Normalizes fuel compensation and exhaust emissions values. Cleans the injection system as well as the intake valves and combustion chamber. Improves performance. Prevents corrosion in the fuel system.
BrandLiqui Moly #ad
ManufacturerLiqui Moly #ad
Height8.27 Inches
Length8.7 Inches
Width5.87 Inches
Part Number20250
Model20250

9. Hi-Gear

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15 fl. oz., Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner

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Hi-Gear #ad - Reduces toxic gases and CO2 emissions. Prevents rotten egg smell. Removes carbon deposits. Cleans fuel system, combustion chamber, injectors, pistons and valves. Restores lost horsepower and increases fuel efficiency.
BrandHi-Gear #ad
ManufacturerHi-Gear #ad
Height7.25 Inches
Length2.5 Inches
Width2.5 Inches
Part NumberHG3270s
ModelHG3270s

10. Cataclean

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Complete Engine, The Original Liquid Science, Fuel & Exhaust System Cleaner, Cataclean 120019 Cataclean

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Cataclean #ad - Epa approved. Does not alter fuel composition and is safe for gasoline, diesel and Hybrid engines. Easy to use -simply pop, pour and go every 3 months. Restores catalytic Converter, Oxygen Sensors, Fuel Injectors and cylinder heads. Original long nose bottle which is capless gas tank compatible.
BrandCataclean #ad
Height10 Inches
Length6.5 Inches
Width3.5 Inches
Part Number120019
Model5