Kwi-injini ephambili yaselwandle, i-piston ring kunye ne-cylinder liner zimbini ezibalulekileyo zokukhuhlana, kwaye ukuhamba kakuhle kunye nokusebenza phakathi kwazo kubaluleke kakhulu kwi-injini engundoqo. Kwiindandatho zepiston ezenziwe nge-aluminiyam, akukho ngxaki kwixesha lokusebenzisa ioli ephezulu yesulfure. Emva koko, umxholo wesulfure kwioli yesulfure ephezulu inceda ukuthambisa phakathi kweringi yepiston kunye ne-cylinder liner. Emva kokusetyenziswa kweoli yesulfure ephantsi, ifilimu yeoli kwi-cylinder liner ayilungile njengangaphambili, nangona ukusetyenziswa kwe-high-base number cylinder lubricating oil ayikwazi ukuphelisa ngokupheleleyo le mpembelelo. Oku kuya kukhokelela ekugqokeni ngokukhawuleza kwentsimbi ye-piston ene-aluminium, eya kuchaphazela i-friction pair, ukwandisa ukunxiba kwi-cylinder liner, kunye nokunciphisa ubomi benkonzo. Ukuba ixabiso lesiseko seoli ye-cylinder yokuthambisa ayinyuswanga ngeli xesha, ukunxiba kuya kukhawuleziswa. Kule meko, ukusetyenziswa kwe-cermet piston rings kuya kuphucula ukunyanzeliswa kwe-piston ring, ukunciphisa i-coefficient ye-friction, ukunciphisa kakhulu impembelelo ekusebenzeni kwesibini sokubambisana, kunye nokwandisa ubomi benkonzo ye-piston ring kunye ne-cylinder liner.