WARNING
PRACTICAL ADVICE FOR
REDUCING FUEL
CONSUMPTION AND
HARMFUL EMISSIONS
FUEL
CONSUMPTION
In practice, fuel consumption may be
higher than the values obtained during
the approval tests.
The fuel consumption figures given in
the tables below are determined on the
basis of the type-approval tests laid
down by specific European Directives.
Vehicle conditions
Here are some of the major factors that
can lead to a difference between test
and real consumption.
1. Have checks and adjustments
carried out in accordance with the
“Scheduled Servicing Plan”.
1) Vehicle condition: inadequate
servicing, use of roof racks, trailers,
heavy loading, high usage of electrical
devices and the air conditioning.
2) Driving style: frequent cold starts for
short journeys, poor engine warming
technique, gear selection, high speeds,
sudden acceleration and braking.
3) Traffic and road conditions: driving in
traffic, steep hills or winding roads,
road surface conditions.
These consumption values refer to
basic vehicles without optionals.
The following procedures are used to
measure the fuel consumption:
2. Check tyre pressure regularly, at least
once every four weeks. Excessively
low pressures will increase
consumption because rolling resistance
will be higher. In addition, this wears
the tyre more quickly and impairs
performance.
urban cycle: begins with cold
starting, followed by driving simulating
the use of the vehicle in town;
extra-urban cycle: driving that
3. Only use snow tyres when the
weather conditions make them
absolutely necessary. They increase
consumption and noise.
simulates using the vehicle out of town
with frequent acceleration in all gears;
the speed varies from 0 to 120 km/h;
4) Atmospheric conditions: intemperate
weather, wind, rain, snow, high altitude.
5) Proportion of use in towns and
cities, in the country and on
combined fuel consumption:
calculated with a weighting of
4. Do not travel with a heavy load: the
weight of the vehicle (especially when
driving in town) and its trim greatly
affect fuel consumption and stability.
5. Remove roof racks or ski racks after
use. These accessories reduce the
vehicle's aerodynamic penetration and
have a negative effect on fuel
approximately 37% of the urban cycle
and 63% of the extra-urban cycle.
motorways.
IMPORTANT The type of route, traffic
situations, weather conditions, driving
style, general conditions of the vehicle,
trim level/equipment/accessories,
climate control system, vehicle load,
roof rack, other situations that affect
aerodynamics or air drag may lead to
different fuel consumption levels than
those measured.
consumption.
6. When transporting particularly large
objects, use a trailer if possible.
7. Use the vehicle's air vents if possible:
travelling with the windows open
impairs aerodynamics.
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