◆ Ngokuhambisana ne-API VG yekhwalithi yeJalimane, ikhiqizwa ngokusebenzisa uwoyela obhakiwe ophumile kanye nezithasiselo ezisezingeni eliphezulu. ◆ Uwoyela obhakiwe ophumelelayo uhlanganiswe nezithasiselo ezihlukahlukene eziphumile. ◆ Ngaphansi kwezimo zokuhlakazeka, ubukhulu bokuthambisa uwoyela kanye nobukhulu bokuthambisa kugcinwa ukuze kuncishiswe ukugqwala kwezingxenye ezihambayo. ◆ Ukuqina okuhle kokuphenduka kanye nokuzinza kokushisa kwemikhiqizo kawoyela kwenza kube nzima ukuba kube nokonakala ngaphansi kwezimo zokusebenza ezinzima. ◆ I-stalviscosity index iphezulu, uketshezi lokushisa okuphansi luhle, ibanga lokushisa elisebenzayo libanzi. Ukuhamba okuhle, ukuphuma kokushisa okuhle, gwema ukushisa okukhulu kwesistimu, ukugqwala kwezingxenye zemishini. ◆ Ukusebenza okuthuthukisiwe kokuphakela kuthuthukisa ukudluliswa kwamandla okuhamba kahle nokuzinzile kwesistimu ye-hydraulic. ◆ Ikhwalithi yezinto zokuvikela ukugqwala, zokuvikela ukuvuvukala nezinto zokufaka zihambisana.