Fuel Additives & Cleaners

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Halfords
Halfords AdBlue 10L 159 views today
4.6 / 5 (1549)
  • Size : 10 Litres
£14.49
+
we Fit from £5.00
Wynn's
Wynns Formula Gold Diesel Treatment 500ml 159 views today
£16.00 £13.99 save £2.01
Cataclean
Cataclean 500ml 159 views today
4.5 / 5 (162)
  • Size : 450ml
£15.99
Wynn's
Wynns Xtreme Diesel System Cleaner 325ml 159 views today
£7.00 £6.79 save 3%
Wynn's
Wynns Diesel Turbo Cleaner 159 views today
4.5 / 5 (118)
  • Size : 325ml
£10.49
Halfords
Halfords AdBlue 3.5L 159 views today
4.7 / 5 (172)
  • Size : 3.5 Litres
£6.49
+
we Fit from £5.00
Wynn's
Wynns Engine Flush Petrol and Diesel 425ml 159 views today
£5.50 £5.49 save 0%
Redex
Redex Advanced Diesel Fuel System Cleaner 159 views today
4.6 / 5 (32)
  • Size : 500ml
  • Enhances acceleration
  • Reduces emissions
£16.99 £15.79 save £1.20
Wynn's
Wynns Xtreme Petrol System Clean - 325ml 159 views today
£7.99 £6.79 save £1.20
Redex
Redex Diesel Treatment 500ml 159 views today
4.7 / 5 (46)
  • Size : 500ml
£8.49 £7.99 save 6%
Cataclean
Cataclean Diesel 500ml 159 views today
4.7 / 5 (69)
  • Size : 500ml
£15.99
Carlube
Carlube Carb and Air intake Cleaner 159 views today
4.6 / 5 (37)
  • Type: Engine Cleaners 
  • Size: 400ml
£6.50 £5.49 save £1.01
STP
STP Complete Fuel System Cleaner Diesel 400ml 159 views today
£14.99 £10.99 save £4
Redex
Redex Fuel System Cleaner Petrol Injector  1L 159 views today
£12.99 £12.49 save 4%
STP
STP Complete Fuel System Cleaner Petrol 400ml 159 views today
£14.99 £10.99 save £4
Displaying   24   of   97   products

Some of us want to eke a little more performance out of our engines. Fuel additives and oil additives give your engines a little extra. Oil additives improve the smoothness of your engine, giving your existing oil a boost. Fuel additives work can improve efficiency and power, lowering emissions and maintaining your engine. At Halfords, we’ve got a large stock of fuel and oil additives suitable for diesel and petrol cars and vans.

We carry engine additives from well-known brands including Millers, Redex and Wynns that have been tested to perform. Online you can compare products and read user reviews to get an inside view on what works best.

Our complete range of fuel and oil additives and internal cleaners are part of our engine oils and fluids, all of which you can find online or instore. Spend over £40 and you’ll qualify for free delivery.

Before using a fuel additive, we recommend that you use an engine cleaner to rid your engine of any nasties that might have built up. As well as engines, we’ve got specific cleaners for fuel injectors and carburettors , EGR cleaner and catalytic converters that will have your car purring in no time. They’re pretty simple to use, but we advise you to follow all instructions to the letter to avoid causing any damage to your vehicle.