Umfaki kaphethiloli
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Ukunikezwa kwezihlungi zikaphethiloli zezingxenye zezimoto ezisebenza kahle kakhulu
Isihlungi sikaphethiloli siyingxenye ebalulekile yesistimu kaphethiloli, esetshenziswa kakhulu ukususa ukungcola okuqinile njenge-iron oxide nothuli oluqukethwe kuphethiloli, ukuvimbela ukuvaleka kwesistimu kaphethiloli (ikakhulukazi i-fuel injector), ukunciphisa ukuguguleka komshini, ukuqinisekisa ukusebenza kahle kwenjini, nokuthuthukisa ukuthembeka. Ngesikhathi esifanayo, izihlungi zikaphethiloli nazo zinganciphisa ukungcola kuphethiloli, okuwenza ukwazi ukusha kahle kakhulu futhi kuthuthukise ukusebenza kahle kukaphethiloli, okuyinto ebalulekile ezinhlelweni zikaphethiloli zanamuhla.
