Biodiesel is a renewable fuel derived from vegetable oils and animal fats. As a result biodiesel has a tendency to oxidize. A direct consequence is the formation of solids and other undesirables that might clog a fuel filter and /or create damaging deposits.

Eastman has developed an innovative solution, BioExtend to extend the self life of biodiesel and slow down the oxidation process. Superior performance at low concentrations—BioExtend antioxidant provides significantly greater performance than other antioxidant solutions at a much lower concentration.