Motokari dzedhiziri dzakasiya mafungiro akaipa mupfungwa dzevanhu, asi teknolojia yedhiziri yakagadziridzwa kwenguva refu kuti ive yakachena, ine simba guru, uye kunyange mune dzimwe nguva injini dzedhiziri dzine zvakanakira zvikuru kupfuura injini dzepeturu. Yakachena uye eco-hushamwari ichiri kuchengetedza kuita kwakasimba. Ngationgororei mutsauko uripo pakati peturu nedhiziri iwe.
Diesel nepetrol engines zvese zviri internal combustion engines, zvinoreva kuti ese ari maviri anopinza mafuta muinjini, osanganisa nemhepo, oidzvanya, oibatidza nenzira dzakasiyana, obva adzingira mapiston pasi kuti atendeuke crankshaft, iyo yakabatana ne kutapurirana kwemotokari, uye pakupedzisira kutenderedza vhiri. Iyo piston inobva yasimuka muhumburumbira, ichisunda magasi anopisa kubva muinjini uye pombi yepombi sepombi, uye kutenderera uku kunodzokororwa kakawanda pasekondi kuzadzisa chinangwa chekuramba uchiburitsa simba.
Musiyano wakakosha pakati peinjini dzedhiziri nepeturu ndiyo nzira yadzinodzingwa nayo. Muinjini yepeturu, mhepo nemafuta zvakatsikirirwa, uye panzvimbo dzakaoma mukutenderera, spark plug inobatidza musanganiswa. Asi muinjini yedhiziri hamuna spark plugs, pachinzvimbo, kana dhiziri nemhepo zvasvinwa zvakakwana, kudzvanya kwakanyanya kunoburitsa kupisa kwakakwana kuita kuti musanganiswa upise wega. Izvi zvinonzi "compression ignition" uye ndiyo hwaro hwemashandiro anoita injini dzedhiziri. Injini dzepeturu dzinogona kushandisawo kudzvanya, asi nemhedzisiro painjini pachayo, injini dzedhiziri chete dzinogona kuishandisa zvakanaka.
