Volvo XC90: Specifications / Fuel tank volume
The fuel tank's refillable volume is shown in the table below.

The medium in the hydraulic brake system is called brake fluid and is used
to transfer pressure from e.g. a brake pedal via a master brake cylinder, which
in turn actuates the brake calipers...
The climate system in the vehicle uses a freon-free R1234yf refrigerant. For
information regarding the refrigerant, refer to the decal located on the inside
of the hood...
Other information:
Instructions for changing wavebands, waveband lists and radio stations in
the selected list are provided here.
Changing wavebands
Swipe from App view on the center display and select the desired waveband (e.g.
FM) or open the App menu in the instrument panel with the right-side steering
wheel keypad and make your selection there...
Volvo recommends the use of detergent gasoline to control engine deposits.
Deposit control gasoline (gasoline with detergent additives)
Detergent gasoline is effective in keeping injectors and intake valves clean.
Consistent use of deposit control gasolines will help ensure good driveability and
fuel economy...