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Kutengera momwe galimoto ilili komanso mtundu wamafuta omwe mumawonjezera, nthawi zambiri, tikulimbikitsidwa kuti muyeretsenso pamtunda wa 20,000 mpaka 30,000 km. Ngati galimotoyo ili bwino ndipo mafuta ali abwino, amatha kupitilira mpaka 40,000 mpaka 60,000 km. Injector yamafuta ikatsekedwa pang'ono, idzakhalanso ndi vuto linalake lagalimoto.
Kufunika koyeretsa
Mafuta atatha kugwira ntchito kwa nthawi ndithu, ma carbon deposits ndi colloids omwe amapangidwa ndi kuyaka amamatira ku majekeseni amafuta, zomwe zimapangitsa kuti majekeseni amafuta azikhala omata kapena otsekeka. Zonyansa ndi fumbi mumlengalenga ndi petulo zidzapangitsanso njira yamafuta kutsekedwa kapena kutsekeka, ndipo pamapeto pake imapanga ma depositi a kaboni ndi matope pamagetsi ojambulira mafuta. Mapangidwe a carbon madipoziti ndi dothi n'zosapeŵeka, koma khalidwe mafuta osauka, idling kwa nthawi yaitali injini, ndi zifukwa zina zidzachititsa kutsekeka mofulumira kwa majekeseni amafuta.
Kugwira ntchito kwa ma jekeseni amafuta kumagwira ntchito yofunika kwambiri pa mphamvu ya injini iliyonse. Kutsika kwamafuta amafuta kumapangitsa kuti jekeseni yamafuta isagwire bwino ntchito, zomwe zimapangitsa kuti mpweya wa carbon mu silinda ukhale wovuta kwambiri; mbiya ya silinda ndi mphete ya pistoni zimavala mwachangu, zomwe zimapangitsa kusakhazikika, kuchulukirachulukira kwamafuta, kuthamanga kofooka, kuyambitsa zovuta komanso kutulutsa mpweya wambiri. Zikavuta kwambiri, jekeseni wamafuta adzatsekedwa kwathunthu ndipo injini idzawonongeka.

Popeza jekeseni wa injini ya dizilo ndi chipangizo cholondola kwambiri (ma valavu a singano mkati mwa jekeseni, pampu ya plunger ya mpope wa jekeseni, ndi ma valve operekera mafuta ali pamodzi mawiri atatu akuluakulu olondola kwambiri a injini ya dizilo), ngati palibe kulondola kwapamwamba kwambiri komanso mikhalidwe yoyika, sikudzakhala kotheka kuyibwezeretsa ikangotulutsidwa. Choncho, jekeseni akalephera, onetsetsani kupita katswiri 4S shopu kuti processing.