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5 Best Fuel Systems of 2025

Last Updated - 2025/09/11

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.

FASS

FASS TSC10100G Titanium Signature Series 100GPH Diesel Fuel System fits GM 6.6L Duramax 2001-2010

FASS

CA$1,247.98

More Details
Main highlights
- Whisper Technology
- Removes Water, Air and Debris From Diesel Fuel
- Protects and Extends The Life Of Your Injectors
- Fuel Mileage Improvement
- 2 Micron Filtration Rating
CA$1,247.98
2

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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.

AUS Injection

AUS Injection (A56010-275-8) 275cc High Performance Fuel Injector, (Set of 8)

AUS Injection

CA$758.10

More Details
Main highlights
- High performance injectors are sold in flow matched sets and will fit the OE wiring harness and fuel rail. Please note these are not OE replacements.
- Flow test report is supplied with every set that shows how well this set is balanced at 100 percent duty cycle, 50 percent duty cycle and at minimum idle setting (800RPM/1.5ms)
- Every injector is tested in several different settings to accurately match the static and dynamic flows
- All AUS performance injector sets are 100 percent tested before packaging
CA$758.10
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.

Liqui Moly

Liqui Moly Jectron 7711 Gasoline Fuel Injection Cleaner additive, Cleans Valves & Injectors Without Removal. Updated to Replace Liqui Moly 2007-300ML

Liqui Moly

CA$22.49

More Details
Main highlights
- Smoother idling, good throttle response
- Restores performance, drivability and durability
- Reduces fuel consumption and exhaust emissions
- Keeps intake valves clean
- Cleans injectors without removal
CA$22.49
4
Best Value
20% 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.

Gumout
20% Off

Gumout 800001742 Regane High Mileage Fuel System Cleaner, 177mL

Gumout

CA$10.68

CA$13.49
(20% Off)

More Details
Main highlights
- Specially formulated for vehicles with over 75,000 kilometers
- Prevents future carbon build-up on port/indirect fuel injectors, intake valves and ports
- Conditions fuel to fight ethanol and water corrosion
- Cleans GDI/direct and port/indirect fuel injectors, intake valves and ports, piston tops, cylinder heads, and combustion chamber
- Best for restoring performance and fuel economy in high mileage vehicles.
CA$10.68
CA$13.49 (20% Off)
5

✖
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$48.65

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$48.65

5 Best Fuel Systems of 2025

FASS TSC10100G Titanium Signature Series 100GPH Diesel Fuel System fits GM 6.6L Duramax 2001-2010

AUS Injection (A56010-275-8) 275cc High Performance Fuel Injector, (Set of 8)

Liqui Moly Jectron 7711 Gasoline Fuel Injection Cleaner additive, Cleans Valves & Injectors Without Removal. Updated to Replace Liqui Moly 2007-300ML

Gumout 800001742 Regane High Mileage Fuel System Cleaner, 177mL

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

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