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:
The transmission is part of the vehicle's driveline (power transmission) between
the engine and the drive wheels. The function of the transmission is to change gears
depending on speed and power needs.
The vehicle has an 8-speed automatic transmission...
A more economical driving style can help lower fuel consumption.
Before driving
If possible, precondition the vehicle before driving.
If preconditioning is not possible when it is cold outside, use seat and
steering wheel heating first. Avoid heating the entire passenger compartment
to reduce the amount of current being taken from the start battery...