Sechinhu chakakosha mumagadzirirwo einjini yekupisa, mafirita emafuta anoita basa rinokosha mumotokari dzemazuvano, muchina wekuvaka, uye zvimwe zvakasiyana siyana zvemagetsi. Basa ravo repakati nderekusefa kusvibiswa uye kusvibiswa kubva mumafuta, kuve nechokwadi chemafuta akachena achipinda mukamuri yekupisa, nekudaro kuchengetedza injini yakagadzikana uye hupenyu hwesevhisi.
Panyaya yemusimboti wekushanda kwavo, mafirita emafuta anoshandisa akawanda akaturikidzana eakanaka sefa midhiya kuteya tsvina senge ngura, mwando, uye colloidal zvimedu mumafuta. Kana izvi zvinosvibisa zvikapinda muinjini isina kusefa, zvinogona kukonzera kuvharika kwejekiseni, kudzikisira kugona kwekupisa, uye kutowedzera kupfeka kwezvikamu zvakarongeka. Masefa emhando yepamusoro-anowanzo shandisa-magadzirirwo akaumbwa akaumbwa, achikwanisa kusefa uye kudzorwa kwakasiyana-siyana kudzivirira kuvhiringwa kwehutsi hwemafuta.
Tekinoroji, mafirita emazuva ano emafuta akashanduka kupfuura echinyakare rimwe chete kusefa basa. Zvimwe zvigadzirwa zvepamusoro-zvinosanganisira chinoparadzanisa hunyoro chinopatsanura mvura yemahara kubva mumafuta, zvichidzivirira kuti isapinda mukupisa uye kukonzera kutadza kweinjini. Pamusoro pezvo, kukwenenzverwa kwesefa uye kusarudzwa kwezvinhu zvakagadziridzwa zvakanyanya kune akasiyana mafuta maitiro (senge peturu, dhiziri, kana biofuel) kusangana nezvinodiwa zvakasiyana zvezvitima zvemagetsi. Nezve kugadziridza, kugara uchitsiva mafuta sefa kwakakosha kuchengetedza kushanda kweinjini ine hutano. Zvinowanzokurudzirwa kutsiva mafirita emafuta zvinoenderana nemirairo yebhuku remotokari. Kune michina inoshanda pasi pemamiriro ezvinhu akaoma, nguva shoma yekugadzirisa inokurudzirwa. Zvakakoshawo kuziva kuti mafirita emhando yakaderera-anogona kuunza njodzi muhurongwa nekuda kwekusakwana kwekusefa kana zvinhu zvisina mwero.
Nekuwedzera kuomesera kwemirau yekuburitsa uye kuenderera mberi kuenderera mberi muhunyanzvi hweinjini, basa remafirita emafuta mukuchengetedza simba uye kuderedzwa kwehutsi rave kuwedzera mukurumbira. Kuchengetedza huwandu hwemafuta emhando yepamusoro hakungonatsiridza kupisa kwemoto chete asiwo kunoderedza hutsi hunokuvadza, zvichiita kuti ive yakakosha tekinoroji chikamu mukuwana emagetsi emagetsi anoshanda uye ane hushamwari.