Fyuluta yamafuta ndi sefa yomwe imapangidwa kuti ichotse zoipitsidwa ndi mafuta a injini, mafuta otumizira, mafuta opaka, kapena mafuta opangira ma hydraulic. Mafuta oyera okha ndi omwe angatsimikizire kuti magwiridwe antchito a injini amakhalabe ofanana. Mofanana ndi fyuluta yamafuta, fyuluta yamafuta imatha kukulitsa magwiridwe antchito a injini ndipo nthawi yomweyo imachepetsa kugwiritsa ntchito mafuta.