10 bestFuel System Cleanersof August 2025
112M consumers helped this year.
1

Red Flow Diesel & Petrol Additive | Injector Cleaner (300ML), Treats 60L Diesel & 150L Petrol, for All Cars, Bikes, Scooters. Keeps Engine Clean, Improves Engine Smoothness, Fuel Economy & Pickup.
Red Flow

9.8
2

Liqui Moly Injection Cleaner 300ml 2522
Liqui Moly

9.6
3

Liqui Moly Motorbike Fuel System Cleaner 4T Shooter (80 ml) (LM044)
Liqui Moly

9.3
4

3M Ptrl Fuel Tank Additive (25 ml)
3M

9.0
5

Gumout Gumout 510012 All-in-One Diesel Fuel System Cleaner, 32 fl. oz, 1 Pack
Gumout

8.8
6

STP Petrol Treatment (200 ml)
STP

8.5
7

MANNOL 9957 Injector Cleaner Fuel Injection System Cleaner for Petrol Engines Imported from Germany (250ML)
MANNOL

8.2
8

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz
Lucas Oil

7.9
9

Chevron 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz.
Chevron

7.6
10

Gumout A USA Product ® Fuel Injector and Carburetor Cleaner - 6 Fl. Oz.
Gumout

7.3

Best Reviews Guide Newsletter
Get exclusive articles, recommendations, shopping tips, and sales alerts
Sign up for our newsletter to receive weekly recommendations about seasonal and trendy products
Thank you for subscribing!
By submitting your email address you agree to our Terms and Conditions and Privacy Policy