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:
It is important to have the vehicle's systems and equipment checked carefully
before driving long distances.
Check that
the engine is running properly and that fuel consumption is normal
there are no leaks (fuel, oil or other fluid)
the brake pedal is functioning properly
tire tread depth and air pressure are at correct levels...
It is possible to change the names of the different driver profiles used in
the vehicle.
Tap Settings in the Top view in the center display.
Tap System Driver Profiles.
Select Edit Profile.
A menu will open in which the driver profile can be changed...