Emirundi egisinga, ekyuma ekisengejja woyiro kirina okukyusibwa buli kiromita 5,000, naye bwe kiba nga tekiwera kiromita 5,000, kitera okukyusibwa nayo. Ekiseera ekitera okukyusa ekyuma ekisengejja woyiro mu mmotoka kibeera kiromita nga 10,000. Obudde obusinga obulungi obw’okukyusa mmotoka osobola okubusanga mu kitabo ky’emmotoka yo.
Ekyuma ekisengejja woyiro ekimanyiddwa nga oil filter oba oil filter kisangibwa mu nkola ya yingini ey’okusiiga. Waggulu w’omusulo we wali ppampu ya woyiro, ate wansi waliwo ebitundu bya yingini eby’enjawulo ebyetaaga okusiiga. Ebisengejja amafuta bijja mu bika by’okutambula okujjuvu-okukulukuta oba okwawuddwamu-okutambula. Full-flow filters ziyungibwa mu lunyiriri wakati wa ppampu ya woyiro ne gallery ya woyiro enkulu, nga zisengejja woyiro yenna ayingira mu gallery. Split-flow filters ziyungibwa mu parallel ne main oil gallery era zisengejja ekitundu kya woyiro kyokka ekituusibwa ppampu ya woyiro.
Omusengejja gwa woyiro guggya obucaafu obw’obulabe mu woyiro ogufuluma mu ssowaani y’amafuta ne guwa woyiro omuyonjo eri crankshaft, connecting rod, camshaft, supercharger, piston ring n’ebitundu ebirala ebitambula, nga kikola kinene mu kusiiga, okunyogoza n’okuyonja, bwe kityo ne kyongera ku bulamu bw’ebitundu bino.
