Refrigerant

Volvo cares about the environment. The air conditioning system in your car contains a CFC-free refrigerant – R134a. This substance will not deplete the ozone layer. The air conditioning system contains 1.8 lbs (820 g) of R134a. The systems uses PAG oil.
See also:
Buttons in the center console
...
Safety
Safety features include antilock brakes, side-impact and side curtain-type
airbags, and whiplash protection. ...
Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposits. Detergent
gasoline is effective in keeping injectors and intake valves clean. Consistent use
of deposit control gasolines ...
