Ngati ndingakwanitse kusefa yabwino, kodi ndingagwiritse ntchito mafuta apamwamba?

Zosefera zabwino sizingapulumutse injini yanu kuti isawonongeke ngati pakhala kugwiritsa ntchito mafuta abwino kwanthawi yayitali. Mafuta amtundu wotsika nthawi zambiri amatanthauza kuti zowonjezera zamafuta zimawonongeka mwachangu, zomwe zimapangitsa kuti injini ikhale yovuta kwambiri. Onetsetsani kuti mumagwiritsa ntchito mafuta abwino komanso zosefera.