Halfords Ratings and Reviews

Fuel & Oil Additives Reviews

Overall Rating:5 out of 5 stars.
"Have an old but lovely Citroen which simply didn't want to start because the petrol had evaporated from the carb, simply squiring EZ Start into the air intake, whilst cranking the engine worked"... (read full reviews)
Overall Rating:5 out of 5 stars.
"Great product, seen a difference in engine noise and the car is a lot quicker off the line. The car feels a lot smoother."... (read full reviews)
Overall Rating:5 out of 5 stars.
"What a product I noticed the difference In my engine performance after using this product. One definitely to be recommend.. It's like it wakes up the engine use"... (read full reviews)
Overall Rating:5 out of 5 stars.
"My dads corsa was in dire need of an internal engine clean so gave this a whirl the stuff that came out of his exhaust was unbelievable but needless to say the car now feels like it wants to"... (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.
"After having so many problems with the Diesel Particulate Filter on my Ford Focus, I had that and the EGR valve removed completely and the ECU remapped. My only concern was the increase in emissions"... (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.
"I was having starting issues with my Peugeot 407. Air was getting in the fuel overnight and I had to manually prime the fuel bulb to get it started. Tank was less than 1/4 full so I had a browse in"... (read full reviews)
Overall Rating:5 out of 5 stars.
"Engine warning light came on in my Picasso and the engine was running a bit lumpy. A shot of this in a full tank and within about 30 miles the engine started to run ok and the engine warning light"... (read full reviews)
Overall Rating:5 out of 5 stars.
"I bought this engine treat (wynns formula gold) for my audi 1600 cc petrol.before this product ,a full tank petrol (53 litres without reserve)gave me between 285-295 miles only .But after using this"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"Great product, bought it to pass MOT emissions and it did just that. Highly recommend this product, my 19 year old car even runs a little smoother now thanks to this product."... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"I have no doubt about the capabilities of this product - I've used it on my 14 year old Zetec, and it's improved it - However, there's a minor placebo effect thrown into the mix when using this"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"Car began showing symptoms of fuel starvation/blocked injector. Dosed it with one bottle of Wynn's Injector Cleaner just before a 200 mile drive. Very rough throughout the journey as the blockage"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"Amazing stuff, I was completely flumoxed my a fault with my scooter, it would idle but wouldn't rev after taking my carb apart loads of times with no improvement with the way it ran, I then noticed"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"Had intermittent power loss issues with my car for a month. Garage advised cleaning the EGR, which is difficult to reach in my 1.6 TDCI fiesta. Used this product and the car feels back to normal!"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"Bought an old bike that had been sat around for a while . Idle was terrible and not running on all four. On the road the bike was not bad, found one exhaust not as hot as others and suspected rubbish"... (read full reviews)
Overall Rating:4.8 out of 5 stars.
"a tapping sound started to appear from my Zafira engine about a month ago, especially when cold. Mechanic looked at it and said it was low pressure on some of the oil feeds to the valves. He flushed"... (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)
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