Mavavu agulugufe oyeretsedwa mwachangu, mawonekedwe osavuta, voliyumu yaying'ono, kulemera pang'ono, kakulidwe kakang'ono, torque yaying'ono yoyendetsa, ntchito yosavuta komanso yofulumira, komanso imakhala ndi ntchito yabwino yoyendetsera bwino komanso kutseka kusindikiza.