Volvo XC90 TWIN ENGINE Owner's Manual page 667

The certified values for the car should not be
interpreted as the expected values. The certifica-
tion values are the comparative values obtained
during special "EU driving cycles" (see below).
There are several reasons for fuel consumption
that is higher and an electric range that is shorter
than the values in the table. Examples of these
include:
•
If the car is not regularly charged from the
mains.
•
If the car is equipped with extra equipment
that affects its weight.
•
Driving style.
•
If the customer chooses wheels other than
those mounted as standard on the basic ver-
sion of the model, as this could increase roll-
ing resistance.
•
High speed causes increased air resistance.
•
Fuel quality, road and traffic conditions,
weather and the condition of the car.
A combination of the examples above could
increase consumption considerably.
There may be huge deviations in fuel consump-
tion if comparing to the EU driving cycles (see
below), which are used in the certification of the
car and on which consumption figures in the
table are based. For further information, please
refer to the referenced regulations.
NOTE
Extreme weather conditions, driving with a
trailer or driving at high altitudes in combina-
tion with fuel quality are factors that consider-
ably increase the car's fuel consumption.
EU driving cycles
The official fuel consumption figures and range
during electric operation are based on two stand-
ardised driving cycles in a laboratory environment
("EU driving cycles"), all in accordance with EU
Regulation no 692/2008 and 715/2007 (Euro
5 / Euro 6), 2017/1151 and 2017/1153. Since
the driving cycles are also used for quality con-
trol, there are stringent requirements for test
repeatability. Testing is therefore conducted in a
controlled manner and only with the car's basic
functions (e.g. air conditioning, radio, etc.
switched off). The results of the official figures
are therefore not naturally representative of what
the customer sees in actual use.
The regulations cover the driving cycles "Urban
driving" and "Motorway driving":
•
Urban driving – the measurement starts
with a cold start of the engine. The driving is
simulated.
•
Motorway driving – the car is accelerated
and braked at speed of 0-120 km/h
(0-75 mph). The driving is simulated.
SPECIFICATIONS
The official value for mixed driving, which is
shown in the table, is a combination of the results
from the "Urban driving" and "Motorway driving"
driving cycles in accordance with legal require-
ments.
To determine the carbon dioxide emissions (CO
emissions) during the two driving cycles, the
exhaust gases were collected. These were then
analysed to determine the value for CO
sions.
Related information
•
Type designations (p. 650)
•
Weights (p. 655)
•
Economical driving (p. 468)
•
Factors that affect range when running on
electricity (p. 470)
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