Halfords Ratings and Reviews

Fuel & Oil Additives Reviews

Overall Rating:5 out of 5 stars.
"Does what it says on the can. Starts my diesel when the temperature drops below freezing."... (read full reviews)
Overall Rating:5 out of 5 stars.
"For a small can it certainly does the job. Does what is says on the tin."... (read full reviews)
Overall Rating:5 out of 5 stars.
"i bought this item from halfords because of price and it does what is says on the tin,i run a old diesal zx volcane td and it does help with lowering the diesal emissions for a mot,i put it in a week"... (read full reviews)
Overall Rating:5 out of 5 stars.
"I have used this on a few cars over the years and it makes a big difference to the mpg and the engine does sound alot healthier. I put this into a nearly empty tank and then fill up using shell v"... (read full reviews)
Overall Rating:5 out of 5 stars.
"I would recommand this product to all my friends and family."... (read full reviews)
Overall Rating:5 out of 5 stars.
"Had 750ml put into my Rover 2ltr Turbo Diesel Engine and went on a 250 miles road trip and it runs a lot quieter and smoother, starts better in the mornings. Would definitely recomend Slick 50. Also"... (read full reviews)
Overall Rating:5 out of 5 stars.
"I have use this product for many years - good for cleaning fuel systems / injectors etc.. Always good to use before an MOT to clean the fuel system. Simple to use - just pour into your fuel tank when"... (read full reviews)
Overall Rating:5 out of 5 stars.
"Bought this product to cure some soft misfires on my Hyundai Getz 1.3GSi. It was struggling to accelerate whilst the engine was under load. Almost as soon as I put the Redex Advanced in the tank it"... (read full reviews)
Overall Rating:5 out of 5 stars.
"My emissions were sky high after my NCT (for example the accepted rate of CO is 0.3% and mine was over 2%!!) I put both bottles into my tank and topped it up to full with clean unleaded from Topaz the"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"I used this on a 2yo Transit Custom diesel with 52,000 miles on the clock. 225ml in the sump & 25ml in the tank. Almost instantaneous noticeable reduction in engine noise. Indicated MPG after using a"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"Used this on my five year old Renault, noticeable increase in power and smoothness in the vehicle! Superb!"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"Used slick 50 for many years in a variety of privately owned cars - they have lasted into the 100 k plus mileage and always felt like power and economy was stable throughout. Gives a peace of mind"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"I've always used Slick 50 Engine Treatment, it's gone up in price over the years but it cant be co-incidence that i always get over 150.000 miles out of my car engines, and they're still going strong"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"This product is brilliant for your car. I buy a bottle everyone I go to London from Manchester which is once every 2 or 3 months. You can fill the difference in car it cleans all the rubbish. Brings"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"Sorted out our smoking engine quickly, cheaply and with no hassle"... (read full reviews)
Overall Rating:4.7 out of 5 stars.
"Excellent product but if I hadn't need this urgently I would have gone elsewhere as I bought further cans from other reputable Companies at half the price"... (read full reviews)
Overall Rating:4.7 out of 5 stars.
"the engine light came up on my dash , so i put in cataclean and so far so good no more light"... (read full reviews)
Overall Rating:4.7 out of 5 stars.
"Put this in my Ford Capri fuel tank and it made a big difference to driveability from cold. Now very smooth, was previously a little jerky and spluttery till fully warmed up. My car has a mechanical"... (read full reviews)
Overall Rating:4.6 out of 5 stars.
"Very good stuff, makes my 150,000 mile 6cly bmw works wonders makes engine alot smoother and quieter, should protect the engine get more miles hopefully. Slight downside is that, if you change your"... (read full reviews)
Overall Rating:4.6 out of 5 stars.
"I first used this in my 2010 2.4D5 Volvo XC60 a few months ago. I never believed in fuel additives until now, After only one dose I noticed a difference in the well known lumpy D4 engine. Recently I"... (read full reviews)
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