Fuel System Cleaners of 2025

Advertising Disclosure

Last Updated - June 28, 2025

Best Choice

1

MotorPower Care
2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

Why we love it

Simple pour-in application.

Improves gas mileage noticeably.

Clears common engine fault codes.
Main highlights

Easy_Use_No_Disassembly
Clean and protect catalytic converter material without disassembly, easy to use.

Ideal_For_Fault_Codes
Fixes P0420 & P0430 codes if the catalyst is not broken.

Customer_Praise_For_Effectiveness
Highly effective in improving gas mileage and clearing engine codes.
Show more
9.8

Exceptional

View offer on:

Show more
How do we rank?

Using our advanced technology, we scan thousands of products and stores, analyzing reviews, ratings, and trends to find what matters most to users like you.

Our team then reviews the data and real user feedback, combining AI and human insights to bring you real-time, top-rated recommendations to guide your decisions with clarity and confidence.
Value for Money

2

FQQF
BG 44K Fuel System Cleaner 4 Pack

9.5 Simple to use

8.9 worth the money

8.9 distance
Main highlights

Key Features
Enhances fuel efficiency by cleaning fuel injectors, valves, and combustion chambers with a single 11 oz. can treating up to 20 gallons.

Ideal Use Cases
Perfect for gasoline engines, especially recommended for vehicles experiencing performance issues due to dirty fuel systems.

Customer Praise
Most reviews highlight its effectiveness in restoring engine performance and fuel efficiency, trusted by automotive professionals for over 40 years.
9.5

Excellent

View offer on:

Show more
3

Archoil
Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

9.7 Long life

9.5 distance

9.1 worth the money

Why we love it

Enhances fuel efficiency significantly.

Reduces diesel particulate filter build-up.

Improves engine performance noticeably.
Main highlights

Fuel System Restoration
Restores key fuel system components like injectors, turbo & DPF.

Best for Diesel Engines
Ideal for improving performance and MPG in diesel engines.

Praised for Fuel Economy
Customers praise its ability to boost fuel mileage significantly.
Show more
9.3

Excellent

View offer on:

Show more
4

BG
BG 44K Fuel System Cleaner

16% Off

9.9 Simple to use

9.3 distance

9.1 worth the money

Why we love it

Restores engine performance effectively.

Compatible with various fuel types.

Highly rated by customers.
Main highlights

Cleans Fuel System Efficiently
BG 44K Fuel System Cleaner quickly cleans injectors, valves, and chambers, restoring performance and gas mileage.

Ideal for Misfire and Performance Issues
Best used for addressing misfire issues and enhancing engine responsiveness in various vehicles.

Highly Praised for Effectiveness
Customers appreciate its ability to improve engine smoothness and throttle response.
Show more
9.1

Excellent

View offer on:

Show more
5

BG(0002698761)
2 Pack Bg 44k Fuel System Cleaner Power Enhancer 11 Oz Cans

9.9 Simple to use

9.7 worth the money

9.5 distance

Why we love it

Enhances engine performance.

Improves fuel efficiency.

Cost-effective maintenance solution.
Main highlights

Effective Fuel System Cleaning
BG 44k Fuel System Cleaner effectively removes carbon deposits, improving engine performance and fuel efficiency.

Ideal for Carbon Build-Up Issues
Best used for vehicles with carbon build-up problems, especially direct injection engines.

Improved Engine Performance
Customers frequently praise its ability to enhance engine performance and gas mileage.
8.8

Very Good

View offer on:

Show more
6

Gumout
Gumout 510013W-6PK Fuel System Cleaner, 6 Pack

9.9 Simple to use

9.3 worth the money

9.1 distance

Why we love it

Restores engine performance effectively.

Safe for turbocharged engines.

Improves fuel economy.
Main highlights

Restores Performance and Economy
Specially formulated to clean carbon deposits, improving engine performance and fuel economy.

Ideal for High Mileage Engines
Best for vehicles with over 75,000 miles, ensuring optimal performance.

Praised for Mileage Boost
Customers report noticeable improvements in mileage and engine smoothness.
Show more
8.7

Very Good

View offer on:

Show more
7

Liqui Moly
Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

Why we love it

Improves fuel efficiency noticeably.

Cleans without clogging the catalytic converter.

Helps pass emissions tests.
Main highlights

Catalytic Converter Protection
Prevents clogging with soot, ensuring optimal converter performance.

Ideal for Gasoline Engines
Best suited for all gasoline engines with catalytic converters.

Enhanced Fuel Combustion
Commonly praised for improving fuel combustion and efficiency.
Show more
8.5

Good

View offer on:

Show more
8

Gumout
Gumout 510014 Regane Complete Fuel System Cleaner, 6 oz. (Pack of 6) (510014W-6PK)

8.2 distance

8.0 worth the money

8.0 Simple to use

Why we love it

Cleans fuel system effectively.

Prevents engine corrosion.

Enhances fuel economy.
Main highlights

Enhanced Cleaning Power with CarbonClear
Combines PEA, PIBA, and patented technology for superior cleaning.

Universal Fit for Versatile Use
Ideal for various vehicles, including older cars and fleets.

Improved Mileage Performance
Regular use noticeably boosts mileage, according to customer reviews.
Show more
8.4

Good

View offer on:

Show more
9

Chevron

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

13% Off

9.9 Precision

8.4 Simple to use

8.0 distance

8.2

Good

View offer on:

Show more
10

Liqui Moly
Liqui Moly 2030 Pro-Line Gasoline System Cleaner, 500 ml, 16.91 Fl Oz (Pack of 1)

9.9 Simple to use

9.5 Long life

9.5 distance

Why we love it

Effective engine performance enhancer.

Ideal for older, high-mileage cars.

Enhances fuel efficiency significantly.
Main highlights

Comprehensive Fuel System Cleaner
Enhances engine performance by cleaning and maintaining the gasoline system effectively.

Ideal for High-Mileage Vehicles
Perfect for improving performance in older or high-mileage cars.

Notable Improvement in Engine Smoothness
Users report smoother engine operation and improved fuel efficiency.
Show more
8.1

Good

View offer on:

Show more

Fuel System Cleaners of 2025

1

2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

Why we love it

How do we rank?

2

BG 44K Fuel System Cleaner 4 Pack

3

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

Why we love it

4

BG 44K Fuel System Cleaner

Why we love it

5

2 Pack Bg 44k Fuel System Cleaner Power Enhancer 11 Oz Cans

Why we love it

6

Gumout 510013W-6PK Fuel System Cleaner, 6 Pack

Why we love it

7

Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

Why we love it

8

Gumout 510014 Regane Complete Fuel System Cleaner, 6 oz. (Pack of 6) (510014W-6PK)

Why we love it

9

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

10

Liqui Moly 2030 Pro-Line Gasoline System Cleaner, 500 ml, 16.91 Fl Oz (Pack of 1)

Why we love it

Similar products on Amazon

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

$11.99

Lucas Oil 10003 Fuel Treatment - 1 Quart

$11.59

Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce

$15.99

Chevron Techron High Mileage Fuel System Cleaner, 12 oz, Pack of 1

$11.54

Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

$8.06

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce

$12.97

STP Complete Fuel System Cleaner, Fuel Cleaner Deep Cleans Entire Fuel System, 5.25 Oz, Multicoloured, 1 Count (Pack of 1)

$5.97

STP Ultra 5 In 1 Fuel System Cleaner and Stabilizer, Deep Cleans Fuel System and Fights Engine Friction, 12 FlOz

$9.97

Gumout 510011 Multi-System Tune-Up, 16 oz.

$7.98

BG 44k Platinum New

$23.75

Sign up and get exclusive special deals