Excellent product for petrol engines. The good it does to the engine is evident in fuel consumption (in addition to increasing horsepower).

The previous days, when the temperature in the morning was -5, the car had difficulty moving forward and I had put a well-known company's antifreeze. I used the power service and from the next morning it started immediately!! Today morning it was -14 and the car started right away without any difficulty!! Also, I feel that the car is much more comfortable on the road and it doesn't emit black smoke like it used to before!! I will definitely continue to use it and I will come back for further comments!!

Last week, I wanted to go skiing in the mountains. Before I left, I filled up my car and added the Diesel supplement. The next morning, when I started the car with -8 degrees, it started immediately without any difficulty, unlike previous days when I hadn't added the supplement and it took a while to start with -1 degree. After adding the supplement, you can feel that the car drives more smoothly on the road and it doesn't emit black smoke or smell like before

I hit it once in Bansko when the car wouldn't start due to the use of another product, and since then I always add it together with the fuel, especially during the winter months when temperatures are low. Additionally, it helped a lot in cleaning the engine from the dirt that was causing a problem and triggering the check engine light.