JLM Diesel Extreme Clean. Reduces Emissions & Cleans DPFs 1000ml

Not what I had hoped for....! After having problems with the DPF filter regenerating on my VW Golf I decided to invest in this thinking it would aid not only that issue but also improve performance. Whilst using the tank of fuel with the additive everything was great, in fact I was ready to buy more! However, after filling the next tank at the Shell garage all that promise vanished and I'm back to square one.....the moral of the story....don't think that more expensive = a better product! Stick to a £10 bottle of treatment and buy 4 of them!!

It’s maybe the best engine cleaner. I’ve used it on my 150.000kms BMW F11 525d. I’ve followed the usage description. Took a long ride (300 km) keeping the rpms between 2500 - 3000. I believe it has solved some issues with my high pressure fuel pump, at least that’s what I’ve noticed immediately. I’ve bought it again to use it after 10.000 kms. I’ve also bought their DPF cleaner. Which I highly recommend.