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STARTING AND DRIVING
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* Option/accessory.
291
nents, altering emission system components
or location or removing components, and/or
repeated use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with
three-way catalytic converters.
Heated oxygen sensors
The heated oxygen sensors monitor the oxygen
content of the exhaust gases. Readings are fed
into a control module that continuously monitors
engine functions and controls fuel injection. The
ratio of fuel to air into the engine is continuously
adjusted for efficient combustion to help reduce
harmful emissions.
Related information
•
Information displays – warning symbols
(p. 77)
•
Engine and cooling system (p. 284)
Economical driving
Better driving economy may be obtained by
thinking ahead, avoiding rapid starts and stops
and adjusting the speed of your vehicle to imme-
diate traffic conditions.
Economical driving conserves natural
resources
Observe the following rules:
•
Bring the engine to normal operating tem-
perature as soon as possible by driving with
a light foot on the accelerator pedal for the
first few minutes of operation. A cold engine
uses more fuel and is subject to increased
wear.
•
Whenever possible, avoid using the vehicle
for driving short distances. This does not
allow the engine to reach normal operating
temperature.
•
Drive carefully and avoid rapid acceleration
and hard braking.
•
Use the transmission's Drive (D) position as
often as possible and avoid using kick-down.
•
Using the engine's optional Eco function can
help improve fuel economy. For additional
information, see ECO* (p. 273).
•
Using the transmission's Sport mode may
increase fuel consumption somewhat. Use
the transmission's Drive (D) position as often
as possible. For additional information about
Sport mode, see Transmission – Geartronic
(p. 265).
•
Do not exceed posted speed limits.
•
Avoid carrying unnecessary items (extra load)
in the vehicle.
•
Maintain correct tire pressure. Check tire
pressure regularly (when tires are cold).
•
Remove snow tires when threat of snow or
ice has ended.
•
Note that roof racks, ski racks, etc, increase
air resistance and also fuel consumption.
•
At highway driving speeds, fuel consumption
will be lower with the air conditioning on and
the windows closed than with the air condi-
tioning off and the windows open.
•
Using the onboard trip computer's fuel con-
sumption modes can help you learn how to
drive more economically.
Other factors that decrease gas mileage are:
•
Dirty air cleaner
•
Dirty engine oil and clogged oil filter
•
Dragging brakes
•
Incorrect front end alignment
Some of the above mentioned items and others
are checked at the standard maintenance inter-
vals.
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