Advertising Disclosure

5 Best Fuel System Cleaners of 2025

Last Updated - 2025/07/05

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 65740-CASE Techron Concentrate Plus Fuel System Cleaner, 20-Ounce (Pack of 6)

Chevron

CA$161.18

More Details
Main highlights
- Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
- Restores lost power and performance
- Reformulated with improved deposit control
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- Proven unbeatable at cleaning the entire fuel intake system
- One 20 ounce bottle treats up to 20 gallon tank and uses every 3,000 as part of a regular maintenance program
- Improves: cold start performance, and fuel stability for up to one year
- Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
- Cleans and protects against corrosive sulfur deposits that can harm fuel gauge sensors
- Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)
CA$161.18
2
11% Off

✖
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
11% Off

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

Chevron

CA$126.35

CA$142.67
(11% Off)

More Details
Main highlights
- Vehicles with higher mileage accumulation can suffer from the effects of age - including carbon build-up and corrosion in the fuel system. Techron High Mileage Fuel System Cleaner helps keep your engine humming, no matter how many roads your vehicle has traveled.
- Techron High Mileage Fuel System Cleaner is fully compatible and protective in all commercially available ethanol blends (E10, E85, etc).
- 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.
- Maximize fuel economy - Keeps engines clean, and protects from deposits that rob engine efficiency and reduce fuel economy.
CA$126.35
CA$142.67 (11% Off)
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, 2 Bottles

Red Line

CA$49.75

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$49.75
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$34.32

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$34.32
5
Best Value
12% Off

✖
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
12% Off

Chevron Techron Concentrate Plus Fuel System Cleaner, 12 oz, Pack of 1

Chevron

CA$24.99

CA$28.67
(12% Off)

More Details
Main highlights
- Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
- Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
- Restores lost power and performance
- Reformulated with improved deposit control
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- Reduces: rough idle, engine surge, hesitation, and spark plug fouling
- Proven unbeatable at cleaning the entire fuel intake system
- One 20 ounce bottle treats up to 20 gallon tank and uses every 3,000 as part of a regular maintenance program
- Improves: cold start performance, and fuel stability for up to one year
- Improves: cold start performance, and fuel stability for up to one year
- Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
- Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
- Cleans and protects against corrosive sulfur deposits that can harm fuel gauge sensors
- Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)
- Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)
CA$24.99
CA$28.67 (12% Off)