Izimoto zikadizili azidingi ama-spark plug. Izimoto zikaphethiloli zithembele kuma-spark plug ukuze zikhiqize inhlansi kagesi, zithungele ingxube evuthayo engena kusilinda futhi iqhube imoto. Izimoto zikadizili, ngakolunye uhlangothi, zisebenzisa i-compression ignition. Umoya omusha ucindezelwa futhi ushiselwe kusilinda, futhi umjovo kaphethiloli ujova uphethiloli wedizili ngesikhathi esifanele. Ngaphansi kwemvelo-yezinga lokushisa eliphezulu kanye-nomfutho ophezulu, udizili uxutshwa nomoya bese uvutha ngokuzenzekelayo. Le ndlela yokuthungela eyingqayizivele isho ukuthi izimoto zikadizili azidingi ama-spark plug.
Ngokukhethekile, ngemva kokuba injini ye-diesel idonsa umoya omusha, iyicindezela ngaphambi nje kwesikhungo esiphezulu esifile, lapho isistimu yokujova uphethiloli ifaka uphethiloli wedizili esilinda. Ngaphansi kwezimo ezimbi kakhulu zokucindezela okukhulu nezinga lokushisa, udizili nomoya kuhlangana ngokushesha futhi kuqhume, kukhiqize umsebenzi. Yonke le nqubo yenzeka ngaphandle komthungo, ngaphandle kwesidingo samapulaki ezinhlansi ukuze anikeze amandla okuthungela angaphandle.
Le ndlela yokushisa yokucindezela yenza injini ye-diesel ibe lula, iqede isidingo samapulaki e-spark, ingxenye esengozini, futhi yehlisa izindleko zokuyilungisa nokuba yinkimbinkimbi. Ngaphezu kwalokho, ngenxa yale ndlela yokusebenza eyingqayizivele, izinjini zikadizili ziyakwazi ukuzuza izilinganiso zokucindezela eziphezulu, okuholela ekuwongeni uphethiloli okungcono kanye nokuphuma okukhulu kwetorque.
Ngokuphambene, izinjini zikaphethiloli ngokuvamile zidinga ipulaki lenhlansi elilodwa noma amabili isilinda. Ngenxa yokuthi uphethiloli unezinga lokushisa eliphezulu-lokuvutha elizenzakalelayo futhi kunzima ukuzishisa ngokwalo ngaphansi kwezimo ezivamile zokuminyanisa, injini kufanele ithembele kwinhlansi ekhiqizwe i-spark plug ukokhela ingxube evuthayo kusilinda ngesikhathi esifanele ukuze injini isebenze kahle.