Better Diesel FBC (Fuel Borne Catalyst) is the cure to common problems and high maintenance costs related to Emissions After-Treatment Systems (DPF, DOC, SCR, EGR, and exhaust sensors).Regular use of Better Diesel FBC improves engine efficiency to extend the life of all makes and models of diesel engines.Better Diesel FBC is lab tested and field proven to increase fuel economy on average by 10%. This translates to 60 - 70% less "engine-out" soot, a.k.a., PM (particulate matter), the root cause of most DPF regen problems.