Fuel & energy

FUEL_CONSUMPTION_UNITS_DISTANCE_OVER_VOLUME

What it is

Fuel consumption units for display

Indicates type of units the car is using to display fuel consumption information to user True indicates units are distance over volume such as MPG. False indicates units are volume over distance such as L/100KM.

This property is defined as VehiclePropertyAccess.READ_WRITE, but OEMs have the option to implement it as VehiclePropertyAccess.READ only.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x11200604 apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x01000000	GLOBAL
Type	0x00ff0000	0x00200000	BOOLEAN
Ordinal	0x0000ffff	0x00000604	0x604

Reading it from an app

CarPropertyManager mgr = (CarPropertyManager)
        car.getCarManager(Car.PROPERTY_SERVICE);

boolean value =
        mgr.getBooleanProperty(VehiclePropertyIds.FUEL_CONSUMPTION_UNITS_DISTANCE_OVER_VOLUME, 0);

This property can be read and written, though an OEM may implement it as read-only. It fires a callback whenever the value changes.