Ixhotyiswe ngenjini yedizili ethembekileyo kakhulu eyenziwe ekhaya, inika amandla aqinileyo ngelixa ifumana ukusetyenziswa okuncinci kwepetroli. Iindleko zokulungisa ziphantsi kakhulu kuneemodeli ezingeniswe kwamanye amazwe, nto leyo eyenza ukuba ifaneleke kwiimeko zokusebenza eziqhubekayo ixesha elide ezifana nemigodi neendawo zokwakha, nto leyo ebangela ukuba ixesha lokubuyisela libe lifutshane.
Uyilo oludibeneyo lweyunithi yonke luthetha ukuba iyasebenza ngokupheleleyo kumzi-mveliso. Kwindawo, yongeza nje ipetroli ukuze uyiqalise; akukho mfuneko yokwakhiwa kwemibhobho okanye isiseko, nto leyo eyenza ifanelekele ukulungiswa okungxamisekileyo kunye nokuthunyelwa ngokukhawuleza kwiindawo zethutyana.