Amavuta yo gusiga ava kuri pompe yo gusiga neza kandi akimara gutwarwa kuri buri ngingo ihindagurika binyuze mumiterere yumurongo umwe. Ibisohoka bya peteroli byo kugaburanisha ntibizahinduka kubera viscolity yamavuta, impinduka zubushyuhe, cyangwa uburebure bwigihe cyo gutanga amavuta. Ibisohoka bya peteroli byumusaranganya muburyo bumwe ntabwo bigira ingaruka kubintu nkintera nuburebure bwumwanya wo kwishyiriraho.