Nubwo ari "imiterere ya ontologiya" gusa, ubushyuhe bwa 51.09% buracyatuma abantu bumva ejo hazaza ha moteri ya mazutu. Niba atari kubwimpamvu ebyiri zibangamira ibyuka bihumanya ikirere hamwe nububiko bwa ingufu za mazutu, moteri ya mazutu igomba kuba ifite ibyiringiro byiza cyane. Gukoresha ubushyuhe ni igipimo cyimbaraga zakazi. Iyo hejuru yubushyuhe bwo hejuru, niko gukora cyane. Imikorere ya moteri ifite ubushyuhe bwa 35% nubushyuhe bwa 45% buratandukanye rwose.

Imikorere yubushyuhe bwa moteri ya lisansi kuri ubu igera kuri 40% gusa, naho imikorere yubushyuhe bwa kera yari hafi 35%. Mu myaka yashize, ishoramari rikomeye mubushakashatsi niterambere ryateje imbere cyane ubushyuhe bwumuriro, ariko gukora biracyari byiza.

Bitewe nibyiza byimiterere, moteri ya mazutu ituma gutwikwa byuzuye binyuze mumashanyarazi, kandi ibiranga gutwika bahuje ibitsina bituma gutwika byuzuye. Kubwibyo, ubushyuhe bwumuriro wibinyabiziga bya lisansi muri rusange biri hejuru ya 5% -10% ugereranije na moteri ya lisansi.