Wynn's Formula Gold High-Performance Petrol System Treatment - Enhances Engine Efficiency - Improves Acceleration & Reduces Noise - Cleans & Protects Fuel Injection System - 500ml

Great stuff. I will use it again, although maybe once a year. If you buy bargain fuel, and not from say Texaco or BP, Shell I'd use it more often. In fact, don't buy supermarket fuel. It's gargage. They you wont need this at all.

1Jan2026. Uk. I have a 2020 BMW X1 18i (petrol engine) with the Semi Auto gearbox DCT. The car is now on 26,000 miles. I put this Wynnes Gold Formula petrol injector cleaner in at 25,000 miles. As you may know the BMW 18i engine (B38?) is actually a 1.5 3cyl engine that uses I believe a twin scroll turbo. I only ever use the on car short to medium Journeys and so only ever put just over half a tank of fuel to save weight and gain a bit of MPG. Usually I mostly put E5 shell or similar sometimes Sainsburys E5 and occasionally mix E5 with E10. So I put half of this Wynnes Gold Formula into the tank over two weeks. I did notice a marked improvement over a couple of days. The engine is quite small and so I thought it would make sense to keep the petrol system, valves, combustion chambers and injectors free from carbon build up as much as possible. The engine is not driven hard I don’t think but as an aside I was recommended i change the oil by an independent BMW GARAGE every 5-6 k miles not the 12k BMW recommend as this helps the turbo. Anyway, I know it’s expensive but I can recommend this Wynnes Gold Formula it must dissolve carbon build up in the engine. I did notice a difference as I say after a couple of days the engine was more responsive. Hope this helps someone.

Does what it should

Serviced my car myself this year to save money I ain't got. Can't flush the engine (manufacturer recommended) but did use this stuff on a full tank of fuel and can honestly say it's FAB! I have increased my MPG by almost 7 to 33 MPG town driving. PS... It is a tuned performance car. 😁

Vauxhall Vectra C 1.8i SRI 140bhp engine.. Before: Noisy injection and Jerking when idle, slight mis fire with eml coming on on cold starts or after driving for considerably amount of time, sluggish, Lambda bank 1 fault code would come up along with fuel trim bank 1 lean. Pinking issues when going through the rev range. After: From reserve fuel, 40 litres of She'll V power mixed with the full contents of this bottle. Went on M11 drove 50 miles there an back 70mph to 90mph. Day & night difference withing the hour! Car now idles and purs great! So far, no eml came back on, once engine is at optimum temperature or on cold starts. Pulls great and most of all, overall the engine & injection system sounds as it should. Only time will tell if its permanent or not I suppose. No more hesitation or pinking issues through the rev range and gears. Will be using again on the next full tank to have peace of mind it's done what it's intended for! For me, it's worked great. Car has had a recent air mass cleaned out using wynns throttle body cleaner, oil, oil filter, air filter, fuel filter & plugs changed around 60miles prior to using this product so this could be a major factor also. My advice would be to fill up fresh fuel from when the reserve fuel light comes on with quality fuel not E10 rubbish, around 30 to 40 litres for it to be more concentrated within the tank. Will give it another go soon!

I’ve used Wynn’s Formula Gold High-Performance Petrol System Treatment in my car for the last few years and have been very happy with it. Regular use has helped keep my fuel system clean and working well, and the car runs smoothly with no issues. It’s easy to use and gives peace of mind knowing it’s helping to maintain the engine and fuel components. Overall, a reliable fuel treatment that does exactly what it claims. I’ll definitely continue using it and would recommend it to others.

Very wonderful product. It changed everything immediately.

So powerful make sure ur tank has enough fuel

Es bastante eficaz nunca la había probado en un coche gasolina de inyección yo acostumbro a comprar mucho esta marca como ya he puesto ahí el coche tiene 20 años inyección y 180.000 km no tenía un problema hasta que un inyector empezaba a darme un poquito problema al arrancar seguidamente arrancaba bien le puse el producto y a los 20 km ya empecé a notar la diferencia es decir que ahora llevo ya medio depósito gatado y va de maravilla y yo creía que mi coche no había perdido potencia pues ha recuperado total el sonido el arranque y la potencia de aceleración la verdad que lo recomiendo espero que vaya bien yo ayuden algo bueno un saludo

ممتاز حيث سيارتي كانت يوجد بها دخان اسود ورائحة بترول ولله الحمد انقطع الدخان نهائي

It’s work very good

المنتج حلو الصراحه ينفع للسيارات الحديثه بنوع محركات GDI

Genuine & Original