Macheka a unyolo amafunikira mafuta a petulo, mafuta a injini ndi mafuta a chain saw:
1. Mafuta amatha kugwiritsa ntchito mafuta osatulutsidwa a No. 90 kapena kupitilira apo.Mukawonjezera mafuta, kapu ya tanki yamafuta ndi malo ozungulira potsegulira mafuta ayenera kutsukidwa musanawonjezere mafuta kuti zinyalala zisalowe mu thanki yamafuta.Nthambi yayikulu yocheka iyenera kuyikidwa pamalo athyathyathya ndi chipewa cha tanki chamafuta choyang'ana m'mwamba.Musalole kuti mafuta atayike pamene mukuwonjezera mafuta, komanso musadzaze thanki yamafuta.Mukatha kuthira mafuta, onetsetsani kuti mwamangitsa kapu ya tanki yamafuta mwamphamvu momwe mungathere ndi dzanja.
2. Mafuta amatha kugwiritsa ntchito mafuta apamwamba kwambiri a injini ziwiri kuti atsimikizire kuti injiniyo imakhala ndi moyo wautali wautumiki.Osagwiritsa ntchito injini wamba wa sitiroko zinayi.Mukamagwiritsa ntchito mafuta ena a injini ziwiri, mtunduwo uyenera kukhala wamtundu wa tc grade.Mafuta kapena mafuta olakwika amatha kuwononga injini, zosindikizira, njira zamafuta ndi thanki yamafuta.
3. Chisakanizo cha mafuta ndi injini yamafuta, chiŵerengero chosakanikirana: gwiritsani ntchito mafuta apadera a injini yamagetsi awiri kuti azitha 1:50, ndiye kuti, gawo limodzi la mafuta ndi magawo 50 a mafuta;gwiritsani ntchito mafuta ena a injini omwe amakumana ndi tc mlingo ndi 1:25, ndiko kuti, magawo 1 25 a petulo ku magawo 25 a mafuta a injini.Njira yosakaniza ndikuyamba kutsanulira mafuta mu thanki yamafuta yomwe imalola mafuta, kenako kutsanulira mafuta, ndikusakaniza mofanana.Kusakaniza kwamafuta amafuta kudzakhala zaka, ndipo kasinthidwe kawo sayenera kupitilira mwezi umodzi wogwiritsa ntchito.Chisamaliro chapadera chiyenera kulipidwa kuti tipewe kukhudzana kwachindunji pakati pa mafuta ndi khungu, komanso kupewa kupuma mpweya wosasunthika kuchokera ku mafuta.
4. Gwiritsani ntchito mafuta opaka mafuta a unyolo wapamwamba kwambiri, ndikusunga mafuta opaka mafuta osatsika kuposa mafuta kuti muchepetse kuvala kwa unyolo ndi macheka.Popeza mafuta a chain saw adzatayidwa m'chilengedwe, mafuta wamba amakhala opangidwa ndi petroleum, osawonongeka, ndipo adzawononga chilengedwe.Ndi bwino kugwiritsa ntchito degradable unyolo macheka mafuta mmene ndingathere.Mayiko ambiri otukuka ali ndi malamulo okhwima pankhaniyi.Pewani kuwononga chilengedwe.