I had problems especially in the mountains with deposits on the side of my motorhome. By using DFC 2020 I no longer have a problem with this and the engine starts more easily, both cold and warm. Now just a handy package is needed.

Since mixing DFC 2020 with my diesel fuel when I fill up (otherwise I always forget it) I notice that the engine runs better and is more economical. On long runs there is a 12 percent fuel saving. Recently in the garage they told me I was an exception to the rule. With my Ford Mondeo, I'm one of the few without EGR-valve and exhaust filter problems.