Fuel Additives

Browse our selection of affordable fuel additives, with products available from many trusted brands. If you’re looking for anti-freeze, coolant, power steering fluid or injector cleaner, we’ve got plenty of options to choose from at Toolstation. Whether your car runs on diesel or petrol, you can find the proper fuel additives to improve your car’s performance and longevity when you browse our selection below.

Fuel Injector Cleaners

Fuel injector cleaners are liquid solvents that can be used to improve your car’s performance. They work by cleaning out any residue in the fuel system and will help your engine run smoothly. Depending on which fuel your vehicle runs on, you can choose diesel injector cleaner or petrol injector cleaner. Simply pour injector cleaner into the fuel tank when it is nearly empty to achieve optimal results.
Holts Holts / Holts Radweld 250ml
( 43 )

Product code: 12640

Holts Radweld 250ml

£4.79

ex. VAT £3.99 Each

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Holts Holts / Holts Speedflush 250ml
( 16 )

Product code: 51642

Holts Speedflush 250ml

£4.79

ex. VAT £3.99 Each

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Prestone Prestone / Prestone Power Steering Fluid 355ml
( 51 )

£4.19

ex. VAT £3.49 Each

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Prestone Prestone / Prestone Antifreeze / Coolant Ready To Use 1L
( 114 )

£5.98

ex. VAT £4.98 Each

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Prestone Prestone Prestone / Prestone Antifreeze / Coolant Ready To Use 4L
( 89 )

£17.69

ex. VAT £14.74 Each

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Silverhook Silverhook / Silverhook AdBlue 10L
( 3 )

Product code: 42875

Silverhook AdBlue 10L

£21.99

ex. VAT £18.32 Each

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Redex Redex Redex / Redex AdBlue 10L
( 600 )

Product code: 54632

Redex AdBlue 10L

£19.98

ex. VAT £16.65 Each

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Redex Redex / Redex System Cleaner Petrol 250ml
( 49 )

£5.99

ex. VAT £4.99 Each

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Redex Redex / Redex Diesel Particulate Filter Cleaner 250ml
( 106 )

£6.99

ex. VAT £5.82 Each

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Silverhook Silverhook / Fuel Treatment Diesel 325ml
( 67 )

Product code: 75916

Fuel Treatment Diesel 325ml

£5.49

ex. VAT £4.57 Each

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Redex Redex / Redex System Cleaner Diesel 250ml
( 52 )

£5.99

ex. VAT £4.99 Each

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Silverhook Silverhook / Engine Flush 350ml
( 32 )

Product code: 72043

Engine Flush 350ml

£3.49

ex. VAT £2.91 Each

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Silverhook Silverhook / Fuel Treatment Petrol 325ml
( 30 )

Product code: 78998

Fuel Treatment Petrol 325ml

£5.49

ex. VAT £4.57 Each

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Holts Holts / Bradex Easystart 300ml
20% Off
( 129 )

Product code: 38028

Bradex Easystart 300ml

£4.31 was £5.39

ex. VAT £3.59 Each

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