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.
See also:
Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal
driving is ensured by shifting up at the speeds listed in the following table.
...
Maintenance precautions
When maintenance and service are required, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service by yourself, you should familiarize yoursel ...
Cooling and dehumidifying in high humidity and low temperature weather
conditions
Under certain weather conditions (high relative humidity, low temperatures, etc.) a small amount of water vapor emission from the air outlets may be noticed. This condition is normal and does not indi ...