Ebisengejja amafuta si bya bonna. Ekyuma ekisengejja amafuta kiggya obucaafu obw’obulabe mu woyiro aggibwa mu ssowaani y’amafuta, olwo n’ewa amafuta amayonjo eri ebitundu ebitambula nga crankshaft, connecting rods, camshaft, supercharger, ne piston rings, ne kiwa okusiiga, okunyogoza, n’okuyonja, bwe kityo ne kyongera ku bulamu bw’ebitundu bino. Ebisengejja amafuta bigabanyizibwamu okusinziira ku nsengeka mu bika ebikyusibwa, ebiwunyiriza, n’ebifuumuuka.
Okutwalira awamu ebisengejja woyiro bibeera bya buli muntu mu mutendera gw’emmotoka. Ebika eby’enjawulo byetaaga ebika bya ffilta eby’enjawulo. Okuteeka mu ngeri ey’amaanyi ekyuma ekisengejja woyiro ekitakwatagana kiyinza okwonoona yingini era mu mbeera ez’amaanyi, kireeta akabenje k’ebidduka.
Ekyuma ekisengejja woyiro kiggya obucaafu, ebirungo ebiyitibwa colloids, n’amazzi mu woyiro wa yingini, ne kituusa woyiro omuyonjo mu bitundu eby’enjawulo ebisiigiddwako amafuta. Okukendeeza ku kusikagana wakati w’ebitundu bya yingini ebitambula ennyo n’okukendeeza ku kwambala, woyiro atuusibwa buli kiseera ku bifo ebisikagana eby’ebitundu bino ebitambula, ne bikola firimu esiiga. Woyiro wa yingini mu butonde alimu ebirungo ebimu ebiyitibwa colloids, obucaafu, amazzi n’ebirungo ebigattibwamu.
Ebiseera by’okukyusa ekyuma ekisengejja amafuta:
Amafuta g’eby’obuggagga eby’omu ttaka:Kyuusa oluvannyuma lwa kiromita 3,000 okutuuka ku 4,000 oba buli luvannyuma lwa myezi mukaaga.
Semi-amafuta agakoleddwa mu ngeri ey’ekikugu:Kyuusa oluvannyuma lwa kiromita 5,000 okutuuka ku 6,000 oba buli luvannyuma lwa myezi mukaaga.
Amafuta agakoleddwa mu bujjuvu:Kyuusa buli luvannyuma lwa myezi munaana oba buli kiromita 8,000 okutuuka ku 10,000.
