Advertising Disclosure

5 Best Fuel System Cleaners of 2026

Last Updated - 2026/02/03

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.

Red Line

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 12 Bottles

Red Line

CA$224.95

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$224.95
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.

STP

STP Fuel System Cleaner and Stabilizer by STP, Fuel System Cleaner for Cars, Trucks, Motorcycles, 5.25 Fl Oz Each, 12 Pack

STP

CA$140.84

More Details
Main highlights
- Save gas by keeping fuel intake system clean
- Removes deposits from entire fuel system
- Helps restore performance
- Helps inhibit corrosion
- Compatible with cap-less fuel tanks
CA$140.84
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$57.95

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$57.95
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.

Red Line

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

Red Line

CA$57.95

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$57.95
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.

Chevron

Chevron Techron 12 oz. Fuel System Cleaner (2 Pack)

Chevron

CA$46.97

CA$49.99
(6% Off)

More Details
Main highlights
CA$46.97
CA$49.99 (6% Off)

5 Best Fuel System Cleaners of 2026

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 12 Bottles

STP Fuel System Cleaner and Stabilizer by STP, Fuel System Cleaner for Cars, Trucks, Motorcycles, 5.25 Fl Oz Each, 12 Pack

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

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

Chevron Techron 12 oz. Fuel System Cleaner (2 Pack)

You may also like...

Liqui Moly Jectron Gasoline Fuel Injection Cleaner- 6pk

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

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

BG 44K Fuel System Cleaner

BG 44k PLATINUM New

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

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

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

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

Fuel Treatment/1x1/Quart

Sign up and get exclusive special deals