Biodiesel waa nooc ka mid ah tamarta biomass, kaas oo u dhow naaftada petrochemical ee sifooyinka jirka, laakiin ka duwan halabuurka kiimikada.Biodiesel-ka isku dhafan waxaa lagu farsameeyaa iyadoo la adeegsanayo xayawaanka qashinka / saliidda khudradda, saliidda mashiinka wasakhda iyo alaabada wershadaha saliidda sida alaabta ceeriin, ku darida kicinta, iyo isticmaalka qalab gaar ah iyo hababka gaarka ah.