James Elliott, Devon
In 2020, I bought a Discovery 4 that smoked like a factory chimney if I had to give it some extra welly. None of the local experts seemed to be able to help sort the problem. I saw your advert and thought it was worth a try. I added the FTC pellets and within less than a tank of fuel the problem had completely gone. I bought a set for my son and have been recommending your product ever since.