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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 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 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

9.7

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2

Liqui Moly Injection Cleaner 300ml 2522

Liqui Moly Injection Cleaner 300ml 2522

Liqui Moly Injection Cleaner 300ml 2522

Liqui Moly

9.4

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3

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

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

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

Liqui Moly

9.1

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4

STP Petrol Injector Cleaner : Unclog Dirty injectors with just one Treatment (Helps : Restore Performance - Reduce Emissions - Save Fuel) - Pack of 1

STP Petrol Injector Cleaner : Unclog Dirty injectors with just one Treatment (Helps : Restore Performance - Reduce Emissions - Save Fuel) - Pack of 1

STP Petrol Injector Cleaner : Unclog Dirty injectors with just one Treatment (Helps : Restore Performance - Reduce Emissions - Save Fuel) - Pack of 1

STP

8.8

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5

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

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

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

Chevron

8.5

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6

STP Petrol Treatment (200 ml)

STP Petrol Treatment (200 ml)

STP Petrol Treatment (200 ml)

STP

8.2

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7

Gumout Multi-System Tune-Up (473ml) | Petrol & Diesel Additive for Cars & Bikes | Cleans Engine, Reduces Carbon Deposits & Improves Mileage | Fuel Injector & Carburetor Cleaner

Gumout Multi-System Tune-Up (473ml) | Petrol & Diesel Additive for Cars & Bikes | Cleans Engine, Reduces Carbon Deposits & Improves Mileage | Fuel Injector & Carburetor Cleaner

Gumout Multi-System Tune-Up (473ml) | Petrol & Diesel Additive for Cars & Bikes | Cleans Engine, Reduces Carbon Deposits & Improves Mileage | Fuel Injector & Carburetor Cleaner

Gumout

7.9

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8

Chevron 67740 Techron Concentrate Plus Fuel System Cleaner - 12 oz.

Chevron 67740 Techron Concentrate Plus Fuel System Cleaner - 12 oz.

Chevron 67740 Techron Concentrate Plus Fuel System Cleaner - 12 oz.

Chevron

7.6

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9

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz

Lucas Oil

7.3

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10

STP 5IN1 Fuel System Cleaner (Petrol) for car (400 ml) - Pack of 1

STP 5IN1 Fuel System Cleaner (Petrol) for car (400 ml) - Pack of 1

STP 5IN1 Fuel System Cleaner (Petrol) for car (400 ml) - Pack of 1

STP

7.0

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