Isetyenziswa ngokubanzi kwiinkalo ezahlukeneyo zoshishino oluqhelekileyo
Ifanele ubungakanani obukhulu kunye nokuma okurhabaxa komphezulu ohambelana nomngxuma wokutywina oyile (qaphela: xa utywina i-viscosity medium kunye negesi, isiphumo sokutywina esimile phakathi komphetho wangaphandle wesikeletoni sesinyithi kunye nomda ongaphakathi womgodi ulinganiselwe.)
Ngothuli - umlomo wobungqina, uthintele ukungcoliseka kothuli oluqhelekileyo kunye noluphakathi kunye nokuhlaselwa kokungcola kwangaphandle.