I used it on a trip of 250 km. I saw the engine running better and a reduction in consumption in a Golf 5 Tsi 2007.

For me, the product worked; the car had an issue with low idle, but as soon as I used it and drove a few kilometers, the car changed. The combustion is very good now.

Personally, the product "saved" me! In a Mercedes clk 200 with a problem of pressure in the second and fourth cylinder, it was showing a check engine light and trembling at idle (they asked me 1500 for repair and at least a week without a car in my Mercedes). After using the product, nothing reappeared at all, no more trembling at idle, everything perfect. Now, at every service, I also add some to the fuel

Excellent product! I have been using it in my vehicle for a month now, which is seven years old, and it has cleared the check engine light that was indicating a fuel mixture issue. Additionally, the vehicle rolls much better compared to before.

Incredible product!!! It fixed the car's issues caused by a clogged fuel filter. The consumption returned to normal and the interruptions stopped. It does what it says and more

It is very good in its category, but if you have never cleaned the injectors, it will remove all the dirt and the engine will get clogged. In my case, this happened and probably the engine needs injector cleaning.