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5 Best Fuel System Cleaners of 2025

Last Updated - 2025/05/03

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Chevron

Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz., (Pack of 6)

Chevron

CA$109.99

More Details
Main highlights
- 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
- For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
- Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
CA$109.99
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Red Line

Red Line 60103-4PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 4)

Red Line

CA$96.00

More Details
Main highlights
- Red Line 60103-4PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 4)
CA$96.00
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Red Line

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 1 Bottle

Red Line

CA$28.01

More Details
Main highlights
- Use one bottle per tank for most effective treatment of neglected vehicle
- Safe for continual use
- Reduces need for octane by up to two points
- Contains synthetic upper cylinder lubricant
- Cleans to nearly 100 percent efficiency in one treatment
CA$28.01
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Liqui Moly

Liqui Moly 2030 Pro-Line Fuel System Cleaner, 500 ml

Liqui Moly

CA$34.61

More Details
Main highlights
- Package Dimension : 2.24 " L x 2.24 " W x 7.96 " H
- Model Number : 2030
- Item Package Weight : 0.9 pounds
- Country of Origin: GERMANY
CA$34.61
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Gumout

Gumout 30001 All-in-One Fuel System Cleaner 296ml

Gumout

CA$13.72

CA$14.99
(8% Off)

More Details
Main highlights
- Use every 5,000 km
- Prevents future carbon build-up
- Improved performance and fuel economy in one fill-up
- Conditions fuel to fight ethanol and water corrosion
- Cleans entire fuel system: intake valves & ports; GDI/direct and port injectors; cylinder heads; combustion chamber; and piston tops
CA$13.72
CA$14.99 (8% Off)

5 Best Fuel System Cleaners of 2025

Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz., (Pack of 6)

Red Line 60103-4PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 4)

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 1 Bottle

Liqui Moly 2030 Pro-Line Fuel System Cleaner, 500 ml

Gumout 30001 All-in-One Fuel System Cleaner 296ml

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