See also:

Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...

Safety precautions
WARNING ● For safety reasons, avoid operating of the cell phone while driving. ● Do not make a phone call while driving. When you have an incoming call, stop the vehicle in a safe loca ...

Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use different brands together. For details, refer to “Manual transmission, front differential and rear differential gear oil”. ...