Biodiesel is a diesel fuel replacement, made from excess renewable fats and oils. Using a production process known as “transesterification”, these feedstocks are converted into a class of compounds known as fatty acid methyl esters (FAME) (refer to the definition above).
Renewable Diesel is a fuel that utilizes the same renewable feedstocks used to produce biodiesel, with a production process more like diesel fuel production. These processes yield compounds that are chemically indistinguishable from petroleum diesel fuel.
While these two fuels are distinctly different, each offers performance improvements over the use of petroleum, such as the reduction of at least 50% greenhouse gas emissions.