– Catalytic Converter & Lambda Sensor Cleaner - Optimises Efficiency, Reduces Emissions & Restores Engine Performance - Ideal for Petrol & Hybrid Engines - 325ml

Used it when the catalytic sensor ligt came on , helped to clear it it and the car has slight improvement odf performance

Seems to be an excellent product. I could definitely feel the difference in my 18 years old car. Totally different power and smoothness than before. I straight away recommended to my colleague! Good little invest help your car.

Worked well

did exactly what it should, car ran far better

Just received this product. Much to my amazement the instructions are in GERMAN! Yes, I did peel the label. Surprisingly enough, I do not speak German. Come on Amazon please advise me of the logic behind that stroke of brilliance, this is the UK!! Yes I can and did look up the instruction online but there may be people who cannot and anyway why should I? Not a good start.

Been having problems with my Cat converter so ran the car to 1/4 tank added Wynns then drove for around 15 miles to make sure it’s fully mixed in the tank, then full tank of premium unleaded and a good blast down the motorway for 30ish minutes then checked again on diagnostics and the reading had dropped from 790ppm to 204ppm of sulphur saturation and Nox sensor fault code has vanished 👌

Great product! Worked like a charm on my 2008 Mazda2. Fuel effeciency as well as overall response have improved. A bit better throttle response if you will. Car fell alive again. These are the first impressions and results after the first use. Three full tanks of petrol later I added a bottle of Wynn's again. However, this time there was no such dramatic improvement though. Experimented on on my slightly newer Mazda 2014 and the results were not as the first case. Pretty much no difference. Overall, great product. Will use it again and will continue to monitor performance. Usage wise you just add the entire bottle into your petrol tank. Super easy.

Appears to do what it says cleaning the Cat and O2 sensors. Great price. Spot on

Mon défaut sonde lambda a disparu après utilisation de ce produit et mon contrôle technique volontaire a montré des valeurs de pollution très satisfaisante. Donc vrai additif efficace et non placébo. (Ford cougar V6). Bien sûr pas de miracle : si vos pièces sont défectueuses elle le sont et il faut les changer, mais en cas d’un simple défaut du à l’encrassement ça fait l’affaire.

Llego en su tiempo y me ha funcionado con arreglo a las espectativas

Effective

Don't waste your money on replacing the Oxygen O2 Sensor. Try this product. It's excellent and will restore your engine to its best condition. The first bottle solved my problem and I added a second bottle to keep the exhaust and Oxygen O2 Sensor clean. I highly recommend it.

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