Engeza uketshezi olusebenzayo.
Ukuhlolwa ngezikhathi ezithile, ukugcwaliswa kabusha kwesimo nokushintshwa koketshezi olusebenzayo kuyisisekelo sokusebenza kahle kwemoto.
Amafutha enjini, u-gearbox, i-coolant kanye ne-power steering fluid, i-brake fluid noma i-fluid kwi-reservoir 
I-sprinkler kufanele ihambisane nezidingo ezishiwo zomenzi. Abakwazi ukubhekisela kuphela kuzakhiwo nemingcele, kodwa futhi nesikhathi sokusetshenziswa kwabo. Izinkinga ziphakama uma kudingekile ukugcwalisa ukulahlekelwa uketshezi ngenxa yokugqoka nokukhala kwemvelo noma ukulungiswa okuhlukahlukene. Isixazululo esingcono kakhulu ukufaka olunye uketshezi esikhundleni salo lonke uketshezi, njengoba kunconywe umenzi. Nokho, lokhu akwenziwa, ikakhulukazi ngenxa yokwenyuka kwezindleko zokuhlinza okunjalo. Ukufaka uphethiloli kushibhe kakhulu.
Endabeni kawoyela wenjini, uma umkhiqizi enezidingo ze-viscosity kanye nekhwalithi kuphela, izinga esitsheni lingagcwaliswa okwesikhashana ngamafutha ahlangabezana nawo, ngenxa yokuntuleka koqobo. Amanzi, ngokuvamile ahlanjululwe, ngokuvamile anele ukwengeza okuncane ohlelweni lokupholisa. Uma udinga ukwengeza uketshezi olwengeziwe, kungcono ukuthi lufane ncamashi. Yiqiniso, kukhona uketshezi emakethe olungaxutshwa nabanye, kodwa ngaphambi kwalokho, kufanele uqiniseke ukuthi lokhu kungenzeka emotweni yakho. Okufanayo kusebenza ku-brake fluid. Ngokwethiyori, uma kukhona uketshezi lwe-DOT 4 ohlelweni, lungangezwa nolunye oluhlangabezana naleli zinga. Ngeshwa, lezi ziphuzo zingahlukahluka, ngakho-ke udinga ukwazi kahle ukuthi zingaxutshwa yini futhi, uma kunjalo, yiziphi. Ngale ndlela sizogwema izinkinga ezinkulu.
Ngokwethiyori, okungenani kuzo zonke izinkinga kufanele kube nge-washer fluid. Yiqiniso, ehlobo kungase kube khona ngisho namanzi ethangini, kodwa ebusika udinga ukuqinisekisa ukuthi okuqukethwe ethangini kunephuzu lokuqandisa eliphansi ngokwanele. Uma ithangi liqukethe ingxube yoketshezi lwasehlobo nobusika nendawo yokuthela engaziwa, kufanelekile ukuyishintsha ngokushesha ngangokunokwenzeka ngokulungiselela ukumelana nesithwathwa ngokuphelele.
