Choyamba, chowumitsira mpweya chapamwamba chidzakhala ndi moyo wautali kuposa njira yotsika mtengo, yotsika mtengo.Izi zikutanthauza kuti nthawi ndi ndalama zochepa zomwe zimagwiritsidwa ntchito pokonza ndi kukonzanso.Kuonjezera apo, chowumitsira mpweya chabwino chidzachotsa bwino chinyezi kuchokera mumlengalenga, zomwe ndizofunikira kwambiri poletsa dzimbiri ndi dzimbiri mkati mwa dongosolo.Pakapita nthawi, izi zingayambitse kuchepa kwakukulu kwa ndalama zokonzanso.

Phindu lina loyika ndalama mu chowumitsira mpweya wabwino kwambiri ndikuwongolera mafuta.Pamene mpweya ukugwira ntchito bwino, ukhoza kuthandizira kuchepetsa kugwiritsira ntchito mafuta pogwiritsira ntchito zigawo zikuluzikulu monga mabuleki ndi kuyimitsidwa.Komabe, ngati makinawo akulepheretsedwa ndi chinyezi kapena zovuta zina, zimatha kuyambitsa kupsinjika kosafunikira pa injini ndikuchepetsa mphamvu yamafuta onse.