Best Fuel Systems Deals Online in the UK (10 Deals Found)

Last Updated - 24/03/2026 Sort By:

Best Choice
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

£3.49 £5.00
30% Off
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

£3.49 £5.00
STP

New
STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical
Concentrated Cleaning Power - Cleans and conditions the entire fuel delivery system in one tank

£11.66
Best Value
STP

New
STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mech
What You'll Get - 400 ml Diesel Fuel System Cleaner

£10.99 £18.99
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
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
Wynn's

New
Wynn's Total Action Diesel Cleaner – All-in-One Fuel and Exhaust System Cleaner – Protects Injectors, Valves, Turbo, DPF
✅ TRIPLE ACTION CLEANING POWER – BEFORE, DURING AND AFTER COMBUSTION: The advanced formulation of this diesel cleaner en

£13.79
Wynn's

New
Wynn's Total Action Diesel Cleaner – All-in-One Fuel and Exhaust System Cleaner – Protects Injectors, Valves, Turbo, DPF
✅ TRIPLE ACTION CLEANING POWER – BEFORE, DURING AND AFTER COMBUSTION: The advanced formulation of this diesel cleaner en

£13.79
21% Off
STP

New
STP GST50400EN ST50400EN Complete Petrol Fuel System Cleanner, 400 ml
Concentrated Cleaning Power - Cleans and conditions your car's entire fuel delivery system in one tank

£7.98 £10.12
21% Off
STP

New
STP GST50400EN ST50400EN Complete Petrol Fuel System Cleanner, 400 ml
Concentrated Cleaning Power - Cleans and conditions your car's entire fuel delivery system in one tank

£7.98 £10.12

10 Fuel Systems deals are available from: Amazon stores, starting from £3.49.
The biggest discount we found is 42% on 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 at Amazon.
The lowest price we found is £3.49 while the highest is £13.79.
Prices for the best Fuel Systems deals average at £8.82.
Last updated on March 24, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Fuel Systems.