Volvo S 90 2017, Руководство пользователя

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STARTING AND DRIVING
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Emission controls
Three-way catalytic converter
•
Keep your engine properly tuned. Certain
engine malfunctions, particularly involving the
electrical, fuel or distributor ignition systems,
may cause unusually high three-way catalytic
converter temperatures. Do not continue to
operate your vehicle if you detect engine
misfire, noticeable loss of power or other
unusual operating conditions, such as engine
overheating or backfiring. A properly tuned
engine will help avoid malfunctions that
could damage the three-way catalytic con-
verter.
•
Do not park your vehicle over combustible
materials, such as grass or leaves, which can
come into contact with the hot exhaust sys-
tem and cause such materials to ignite under
certain wind and weather conditions.
•
Excessive starter cranking (in excess of one
minute), or an intermittently firing or flooded
engine can cause three-way catalytic con-
verter or exhaust system overheating.
•
Remember that tampering or unauthorized
modifications to the engine, the Engine Con-
trol Module, or the vehicle may be illegal and
can cause three-way catalytic converter or
exhaust system overheating. This includes:
altering fuel injection settings or compo-
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
•
Octane rating (p. 398)
Driving economically
Better driving economy can 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 Eco function can help
improve fuel economy.
•
Do not exceed posted speed limits.
•
Avoid carrying unnecessary items (extra load)
in the vehicle.
•
Maintain correct tire pressure. Check tire
pressure regularly (when the tires are cold).