◆Imikhiqizo ihambisana nezinga lekhwalithi le-German API Cl-4 kanye ne-European ACEA B3-98#2/E5-02, ithatha uketshezi lwe-hydrogenation olungenisiwe, inciphisa ukugqoka futhi ikhulise impilo yesevisi yejini. ◆Izakhiwo eziphezulu zokuhlanza ezishisayo zenza kube lula ukulawula ukuhamba kwevalve kanye nokwakheka kwepiston kanye nokugaya udonga lwecylinder ukuze kugcinwe ijini ihlanzekile kakhulu. ◆Izingxenye zokuzinza kokuxubha, ukuvinjwa okusebenzayo okubangelwa ukuhamba okuphezulu kwe-soot kokuthambisa ijini, kunciphisa i-sludge eyenziwe, ukonga uphethiloli okuhle, kunganciphisa kakhulu ukusetshenziswa kwephethiloli, ukuqala okuphansi kokushisa okuhle kanye nokuthambisa okushisayo okuphezulu, ubuchwepheshe obuhlukile bokwakhiwa kwe-micro phosphorus enezinsalela eziphansi, kungathuthukisa kahle ukukhishwa kwe-euro V standard, okuthuthukisa ukuvikelwa kwemvelo.