image of Redex Petrol Injector Cleaner 500ml

Item: 411744

Redex Petrol Injector Cleaner 500ml


(Unit price: £16.98 per litre)

Buy one get one free on Motoring essentials

Ends Sunday 5th June

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  • Description
  • Reviews
  • Help & Advice
  • Buying Options
  • Redex Petrol Injector Cleaner

    The Redex Petrol Injector Cleaner helps to clean the harmful deposits that build up around the fuel injectors, which can reduce the vehicle's performance.

    Redex Petrol Injector Cleaner Extra Info

    • Clean injectors
    • Reduce exhaust emissions
    • Restore performance
    • Increase fuel economy
  • Rated 4.7 out of 5 by 17 reviewers.
    Rated 5 out of 5 by Does what it claims it will do Add the recommended amount to my car fuel tank, did not notice much of a difference. Refilled fuel tank and added the same amount and the fuel consumption went from 42 to 44 mpg.Also tried it on my motorcycle and immediately noticed the difference, idle speed better and mpg improved by 3mpg. Highly recommended and a must buy when it is on two for one promotion. 13 May 2016
    Rated 5 out of 5 by Great product. Brought this as I recently bought an old car which wasn't running smoothly. Have done two shots of this with 2 full tanks of petrol and it is running like a dream. I doubt my car has ever had an engine treatment in its 25 year history, but I will be using it with everyother full tank. 02 May 2016
    Rated 5 out of 5 by Redex injector cleaner This product has resulted in improved engine starts and an increase in mpg on a tank of petrol it has smoothed the running of the engine and seems more responsive after the first treatment and I have used it regularly every other tank full. 13 March 2016
    Rated 5 out of 5 by Redex Petrol Injector Cleaner 500ml Too soon to tell if it worked, will se after 2 more uses ... 31 January 2016
    Rated 5 out of 5 by Good size bottle When I ordered it I throught it was a smaller bottle to my surprise it was large. Very good value for money you notice right away using this. Dont use cheap supermarket fuel with it u notice more with shell BP essential fuel 08 October 2015
    Rated 4 out of 5 by Redex Petrol Injector Cleaner 500ml got this in the 'bogof' deal so good value used at same time as a spray injector cleaner and ECU reset, MPG went from 50mpg to 55mpg, not sure if the redex helped, but i wil continue to use to see if improvement continues 02 May 2015
    Rated 4 out of 5 by Redex Cheap and cheerful way to clean up the car's internals... definitely notice an improvement on my car's fuel economy. 29 April 2015
    Rated 5 out of 5 by Excelent product! Got a new car and it was due its MOT. and it didnt look like it had been looked after so i got this to make sure it passed the emissions and i was made up. It sailed through the emissions test. eg the pass for CO2 is 0.3% and it was 0.07. only notices 1 MPG improvement but as far as keeping your engine clean its fantastic! 27 April 2015
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  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on

    Checkout is always via and all payment will be taken via In checkout the products will be split into separate deliveries for each supplier.

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    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

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Redex Fuel & Oil Additives

Redex Petrol Injector Cleaner 500ml

£8.49 Redex Petrol Injector Cleaner cleans harmful deposits that build up around the fuel injectors