Economical Driving - Volvo S60 Owner's Manual

08 Starting and driving
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overheating. This includes: altering fuel
injection settings or components, altering
emission system components or location
or removing components, and/or repea-
ted use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with
three-way catalytic converters.
The heated oxygen sensors monitor the oxy-
gen content of the exhaust gases. Readings
are fed into a control module that continu-
ously 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 emis-
sions.
Heated oxygen sensors
The heated oxygen sensors monitor the oxy-
gen content of the exhaust gases. Readings
are fed into a control module that continu-
ously 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 emis-
sions.
Related information
•
Information displays – warning symbols
08
(p. 68)
•
Engine and cooling system (p. 267)
*
274
Option/accessory, for more information, see Introduction.

Economical driving

Better driving economy may be obtained by
thinking ahead, avoiding rapid starts and
stops and adjusting the speed of your vehicle
to immediate 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 vehi-
cle for driving short distances. This does
not allow the engine to reach normal
operating temperature.
•
Drive carefully and avoid rapid accelera-
tion and hard braking.
•
Use the transmission's Drive (D) position
as often as possible and avoid using kick-
down.
•
Using the transmission's Sport mode
may increase fuel consumption some-
what. Use the transmission's Drive (D)
position as often as possible. For addi-
tional information about Sport mode, see
Transmission – Geartronic (p. 249).
•
Using the engine's optional Eco func-
tion 15 can help improve fuel economy. For
additional information, see ECO* (p. 257).
•
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 con-
sumption.
•
At highway driving speeds, fuel consump-
tion will be lower with the air conditioning
on and the windows closed than with the
air conditioning off and the windows
open.
•
Using the onboard trip computer's fuel
consumption 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
14