Mfundo yogwira ntchito ya chosinthira mphamvu cha magalimoto atatu ndi iyi: kutentha kwambiri kwa utsi wa galimoto kudzera mu chipangizo choyeretsera, chotsukira chomwe chili mu chosinthira mphamvu cha magalimoto atatu chidzawonjezera ntchito ya mitundu itatu ya mpweya wa CO, ma hydrocarbon ndi NOx, kuti chilimbikitse kupangika kwa okosijeni - kuchepetsa kwa mankhwala, momwe kupangika kwa CO pa kutentha kwakukulu kumakhala kopanda mtundu, mpweya wopanda poizoni wa carbon dioxide; Ma hydrocarbons amasungunuka kukhala madzi (H2O) ndi carbon dioxide pa kutentha kwakukulu; NOx imachepetsedwa kukhala nayitrogeni ndi mpweya. Mitundu itatu ya mpweya woipa kukhala mpweya wopanda vuto, kotero kuti utsi wa galimoto ukhoza kuyeretsedwa. Pokhapokha ngati pali mpweya wa okosijeni, chiŵerengero cha mpweya ndi mafuta n'choyenera.
Chifukwa cha mafuta otsika ku China, mafutawa ali ndi sulfure, phosphorous ndipo mankhwala oletsa kugwedezeka a MMT ali ndi manganese. Zigawo za mankhwalazi zimapanga ma chemical complexes pamwamba pa sensa ya okosijeni ndipo mkati mwa chosinthira mpweya cha njira zitatu ndi mpweya wotuluka utatha kuyaka. Kuphatikiza apo, chifukwa cha zizolowezi zoyipa za dalaivala zoyendetsa, kapena kuyendetsa galimoto kwa nthawi yayitali m'misewu yodzaza, injini nthawi zambiri imakhala yosakwanira kuyaka, zomwe zimapangitsa kuti carbon isungidwe mu sensa ya okosijeni ndi chosinthira mpweya cha njira zitatu. Kuphatikiza apo, madera ambiri mdzikolo amagwiritsa ntchito mafuta a ethanol, omwe ali ndi mphamvu yoyeretsa kwambiri, amayeretsa sikelo m'chipinda choyatsira koma sangawole ndikuyaka, kotero ndi mpweya wotayira womwe umatuluka, dothi ili lidzayikidwanso pamwamba pa sensa ya okosijeni ndi chosinthira mpweya cha njira zitatu. Izi zimachitika chifukwa cha zinthu zambiri zomwe zimapangitsa galimotoyo kuyenda mtunda wautali, kuwonjezera pa kusonkhana kwa kaboni mu valavu yolowera ndi chipinda choyaka moto, izi zingayambitsenso kulephera kwa sensa ya okosijeni ndi poisoning ya chosinthira mpweya cha njira zitatu, kutsekeka kwa chosinthira mpweya cha njira zitatu ndi valavu ya EGR yotsekedwa ndi sediment yomwe yatsekeka ndi zina, zomwe zimapangitsa kuti injini isagwire bwino ntchito, zomwe zimapangitsa kuti mafuta azigwiritsidwa ntchito kwambiri, mphamvu ichepe komanso utsi utuluke kuposa muyezo ndi mavuto ena.
Kukonza injini nthawi zonse kumangokhudza kukonza koyambira kwa makina opaka mafuta, makina olowetsa mafuta ndi makina operekera mafuta, koma sikungakwaniritse zofunikira zonse zokonza makina amakono opaka mafuta, makina olowetsa mafuta, makina operekera mafuta ndi makina otulutsa utsi, makamaka zofunikira zokonza makina owongolera mpweya. Chifukwa chake, ngakhale galimoto ikakonzedwa nthawi yayitali, zimakhala zovuta kupewa mavuto omwe ali pamwambapa.
Poyankha zolakwika zotere, njira zomwe makampani okonza zinthu amachita nthawi zambiri zimakhala kusintha masensa okosijeni ndi ma catalytic converters atatu. Komabe, chifukwa cha vuto la ndalama zosinthira, mikangano pakati pa makampani okonza zinthu ndi makasitomala ikupitirira. Makamaka yomwe siili ndi moyo wotumikira wa kusintha masensa okosijeni ndi ma catalytic converters atatu, nthawi zambiri imakhala nkhani yaikulu, makasitomala ambiri amanena kuti vutoli ndi khalidwe la galimotoyo.
