Best Fuel Systems Deals Online in the UK (25 Deals Found)

Last Updated - 14/09/2026 Sort By:

Best Choice
STP

New
STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml, Enhances Fuel Economy
What You'll Get - 400 ml Diesel Fuel System Cleaner

£11.49 £11.84
STP

New
STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical
Packaging may vary

£11.53
New
Fuel Doctor Diesel Bug Treatment Additive 500ml | Fuel System Cleaner
Fuel Doctor Additive 500ml. Regular dosing protects against this costly problem, inhibiting contamination accumulation a

£32.99
Best Value
Redex

New
Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase F
REDEX PETROL FUEL ADDITIVE: Use Redex Petrol Additive For Cars, the specialist petrol system cleaner, lab designed to re

£3.50 £4.49
New
Berryman B-12 Chemtool Carburetor Fuel System And Injector Cleaner 444ml USA IMP
Berryman B-12 Chemtool. Carburetor, Fuel System & Injector Cleaner |444mL (USA Import). Fuel Type: For use in petrol (ga

£14.49
Wynn's

New
Wynn's Extreme Diesel System Cleaner - Deep Cleaning Engine Treatment - Restores Fuel Economy & Reduces Emissions - Prev
✅ CLEANS THE ENTIRE DIESEL FUEL SYSTEM: Effectively removes dirt, carbon deposits, and other harmful residues that accum

£7.49
TECHRON

New
TECHRON PEA Concentrate Plus Petrol Fuel Injector System Cleaner - 300ml
Fuel economy performance

£15.99
New
Berryman B-12 Chemtool Carburetor Fuel System and Injector Cleaner 444ml
Keep your engine running at peak performance with Berryman B-12 Chemtool Carburetor, Fuel System, and Injector Cleaner –

£14.49
Wynn's

New
Wynn's Formula Gold High Performance Diesel Fuel System Treatment - 500ml
✅ IMPROVES COMBUSTION FOR OPTIMAL ENGINE PERFORMANCE: This high-performance diesel treatment is formulated to enhance co

£15.39 £16.99
New
Fuel Doctor Diesel Bug Treatment & Fuel System Cleaner Additive 1L
Regular dosing protects against this costly problem, inhibiting contamination accumulation and protecting fuel systems f

£53.99
Wynn's

New
Wynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Redu
✅ HIGH-PERFORMANCE PETROL ENGINE BOOSTER: Wynn's Formula Gold High-Performance Petrol System Treatment is designed to en

£15.49
Redex

New
Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fu
The information below applies to each unit in the pack

£9.98
New
Techron Concentrate Plus Petrol Fuel Injector System Cleaner 300ml
Techron Gasoline (Petrol) Conc Plus 300ml. Techron Concentrate Plus is a premium performance gasoline fuel system cleane

£16.29
Redex

New
Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fu
REDEX DIESEL FUEL ADDITIVE: Use Redex Diesel Treatment Fuel Additive, the specialist diesel system cleaner, lab designed

£4.99
New
Techron D Concentrated Diesel Fuel System Cleaner 250ml
A reduction in harmful exhaust emissions.

£16.29
11% Off
STP

New
STP Diesel Fuel Additive Treatment Bundle, Includes Diesel Injector Cleaner
STP Diesel Bundle contains STP Diesel Injector Cleaner 200ml and STP Ultra 5-in-1 Diesel System Cleaner 400ml

£14.19 £15.89
New
US PRO Fuel Pump Pressure Tester For Schrader Test Port Systems Petrol & Diesel
Comprehensive fuel pump pressure test kit of adaptors and fittings for modern Schrader test port fuel injection systems.

£21.18
New
Diesel Fuel System Priming Bleeding Pump For Ford PSA Land rover Jaguar Volvo
Diesel fuel system bleeding tool. Also can be used for bypassing the fuel filter if you suspect a restriction in the fil

£9.99
New
4 x Redex Diesel Fuel System Injector Cleaner Treatment 500ML 4 Shot Bottle
4 x Redex Diesel Fuel System Injector Cleaner Treatment 500ML 4 Shot Bottle

£22.25
New
Dipetane 5L Fuel Treatment Reduce Emissions Injector DPF CAT EGR System Cleaner
The Dipetane 5L Fuel Treatment is a cleaner designed specifically for fuel injectors, DPF systems, and CAT and EGR syste

£43.29
New
Lucas Deep Clean Fuel System Cleaner 473ml- Improve MPG - Petrol
FOR USE IN PETROL ENGINES ONLY - FOR DIESELS USE DIESEL DEEP CLEAN #10872A. Eliminates the need for higher octane fuel.

£11.45
New
Red Line SI-1 Complete Petrol Fuel System Cleaner Treatment 443ml 60103 Cleans
Red Line SI-1 Complete Petrol Fuel System Cleaner 443ml | 60103. 443ml bottle. Product No.60103. MPN: 60103. Product: SI

£18.99
New
For Ford PSA Land rover Jaguar Volvo Diesel Fuel System Priming Bleeding Pump UK
Diesel fuel system bleeding tool. Also can be used for bypassing the fuel filter if you suspect a restriction in the fil

£9.69
New
3Pk - RAC PETROL FUEL SYSTEM CLEANER - Cleans Lines Pump Injectors increase mpg
RAC Petrol Fuel System Cleaner. 3x RAC Petrol Fuel System Cleaner. High Quality Petrol System Cleaner. Suitable for all

£10.95
Used
BMW F10 F11 F20 F30 120d 320d 520d N47N 184HP Diesel Set Fuel Injection System
BMW 1 3 5 Series F10 F11 F20 F21 F30 F31 120d 320d 520d N47N 184HP Diesel Set Fuel Injection System. We do have a lot of

£479.95 £499.95

25 Fuel Systems deals are available from: Amazon, eBay stores, starting from £3.50.
The biggest discount we found is 22% on Redex Petrol System Cleaner 250ml, Petrol Injector Cleaner To Remove Harmful Deposits, Maximise Performance & Increase Fuel Economy Fuel Additives For Petrol Engines, Suitable For Hybrids at Amazon.
The lowest price we found is £3.50 while the highest is £479.95.
Prices for the best Fuel Systems deals average at £35.45.
Last updated on September 14, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Fuel Systems.