Mfundo yogwira ntchito yotembenuka katatu ndi iyi: pomwe kutentha kwambiri kwagalimoto kumatuluka kudzera mu chipangizo choyeretsa, choyeretsa m'makampani atatu a mpweya, pomwe madokotala amapangira mpweya wabwino, wosakhazikika. Ma hydrocarbans oxidize madzi (H2O) ndi kaboni dayokisi pa kutentha kwambiri; NOX imachepetsedwa ndi nayitrogeni ndi okosijeni. Mitundu itatu ya mpweya wovulaza kukhala mpweya wovulaza, kotero kuti kutama kwagalimoto kumatha kuyeretsedwa. Kungoganiza kuti pali oxygen omwe alipo, kuchuluka kwa mafuta ndi zomveka.
Chifukwa cha kuchuluka kwa mafuta ku China, mafuta ali ndi sulufule, phosphorous ndi antiknock wothandizira mmt muli manganese. Zigawo zamankhwala izi zimapanga ma couctices pamtunda wa sensor ya oxygen ndi mkati mwa njira zitatu zosinthira ndi mpweya wotuluka utatsika pambuyo pa kuyaka. Kuphatikiza apo, chifukwa cha kuyendetsa koopsa kwa driver, kapena kuyendetsa galimoto yayitali pamsewu wokhazikika, injiniyo nthawi zambiri imakhala yosakwanira yophatikiza kaboni, yomwe imapanga katemera katebor mu sensor ya oxygen ndi njira yosinthira. Kuphatikiza apo, madera ambiri amdziko lapansi amagwiritsa ntchito mafuta a ethanol, omwe ali ndi mphamvu yoyeretsa, amatha kuwola ndi mpweya wamafuta, kuti dothi lizikhala pamwamba pa sensor ya oxygen. Zichitika chifukwa cha zinthu zambiri zomwe zimapangitsa kuti galimoto iyende kwa nthawi yayitali, kuwonjezera pa chipilala chambiri, zomwe zimapangitsa kuti mafuta azoletseke, zomwe zimapangitsa kuti mugwiritse ntchito mafuta a nthawi yayitali, ndikupanga mphamvu yopitilira muyeso komanso mavuto ena.
Injini yachikhalidwe yokhazikika imakhala yotsika mtengo yokwanira yamafuta, imeseke dongosolo ndi magetsi, koma sizingakwaniritse dongosolo lokwanira la zamafuta amakono, makamaka dongosolo lazofunikira kwa dongosolo lowongolera. Chifukwa chake, ngakhale galimoto yayitali yokhazikika, zimakhala zovuta kupewa mavuto omwe ali pamwambapa.
Poyankha zolakwazi, njira zomwe zimathandizidwa ndi mabizinesi okonza nthawi zambiri zimakhala m'malo mwa oxygen exygen ndi otembenuza ma caalytic atatu. Komabe, chifukwa cha vuto la ndalama zobwezeretsera, mikangano pakati pa mabizinesi okonza ndi makasitomala akupitilizabe. Makamaka iwo osapita ku moyo wautumiki wolowa m'malo mwa osinthira oxygen, otembenuza ma calytic atatu, nthawi zambiri makasitomala ambiri amafotokoza za vutoli.
