See also:

Manual transmission, front differential and rear differential gear oil
For the checking procedure, or other details, refer to “Manual transmission oil”, “Front differential gear oil (AT models)”, “Rear differential gear oil”. ...

ON
This is the normal operating position after the engine is started. ...

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. ...