See also:

Corrosion protection
Refer to “Corrosion protection”. ...

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. ...

SENSE AND STYLE
Family Friendly (Not Really, Fair, Great, Excellent): Not Really Fun-Factor (None, Some, Good Times, Groove-On): Good Times ...