Can B100 Biodiesel cause any problems for my diesel engine?
It can, depending on how old your vehicle is. Biodiesel is a form of solvent an an can affect some seals, gaskets, and adhesives, particularly those made before 1993 and those made from natural or nitrile rubber. Most diesel engines made after 1994 have been constructed with gaskets and seals that are generally biodiesel resistant. Earlier engine models or rebuilds may use older gasket and seal materials and present a risk of swelling, leaking, or failure. Fuel pumps may contain rubber valves that may fail. B100 also cleans dirty fuel tank deposits which may result in the need for an additional filter change.