10 bestAutomotive Performance Fuel Systemsof January 2026
112M consumers helped this year.
30% off
1
STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP
9.9
2
Cataclean Petrol | Complete Fuel & Exhaust Cleaner | Catalytic Converter, Valve & Injector Cleaner | Fuel Additive Formulated for Performance & Fuel Efficiency | Pre MOT Emissions Reducer | 500ml
Cataclean
9.8
14% off
3
Wynn's W12264 Extreme Diesel System Fuel Injector Cleaner Engine Additive Treatment 325ml
Wynn's
9.5
4
Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Petrol Engines, Suitable For Hybrids
Redex
9.3
29% off
5
STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP
9.0
OtherUp to 14% off
Wynn's Formula Gold High Performance Diesel System Treatment 500ml
REDEX Petrol Fuel System Cleaner 4 x 500ML
STP Diesel High Milage Injector Cleaner 200 ml, Cleans and Protects your Engine for 300 miles, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
Carter Fuel Systems In-Tank Universal Electric Fuel Pump Automotive Replacement 12V (P60430)
34% off
6
Wynns 1831039 76401 500ml Formula Gold Diesel
Wynn's
8.7
11% off
7
Nitrox +10 Clean Speed Super Petrol Additive 500ml Fuel Treatment Cleaner Engine Injector All In One System Cleaning Remove Carbon Gum And Dirt Lubricate Cylinder Heads Boost BHP Reduce Emissions
Nitrox
8.4
8
Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Diesel Engines, Suitable For Hybrids
Redex
8.2
10% off
9
STP Diesel Fuel Additive Twin Pack
STP
7.9
6% off
10
Briggs & Stratton Fuel Fit Additive/Stabiliser. 992381
UPMSX
7.6
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