From my understanding, biodiesel is not only a cleaner, but it also lubricates. Biodiesel is known to increase the life of fuel injection pumps and fuel injectors. I fill up with at least B2 in every tank, sometimes B5, B10 and B20 when I can find it. I fill up at Love’s Truck Stops, which always has biodiesel here in NM. I change my oil once per year (12,000 mile) intervals and always take a UOA. I have 90,000 miles on my truck, which I bought new, and have never had problems with the injectors.