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 Service intervals.
NOTE : Vehicles equipped with automatic transmissions should use (D)rive as often as possible and avoid using
"kickdown" to help improve fuel economy.
Cooling system
The risk for engine overheating is greatest, especially in hot weather, when:
Towing a trailer up steep inclines for prolonged periods at wide open throttle and low engine rpm.
Stopping the engine suddenly after high speed driving (so-called "after-boiling" can occur).
To avoid overheating, the following rules should be followed:
Do not drive for prolonged periods at engine speeds above 4500 rpm if you are towing a trailer in hilly terrain.
Reduce speed when towing a trailer up long, steep inclines. The risk of overheating can be reduced by switching off
the air conditioning system for a short time.
Do not let the engine idle unnecessarily for prolonged periods.
Do not mount auxiliary lamps in front of the grill.
When the risk of overheating is imminent, or in the event of overheating (the temperature gauge goes repeatedly into,
or stays continually in, the red section), the following precautions should be taken:
Switch off the air conditioning system.
Pull off the road, away from traffic, stop the car and put the gear selector into Park. Do not stop the engine!
Switch the heater to full (maximum) position. Increase the engine speed to approx. 2000 rpm (twice idling speed)
until the temperature begins to drop.
If the warning light in the center of the instrument panel is red, and the message "Coolant level lo stop engine" is
displayed, switch off the engine as soon as possible.
WARNING!
Do not remove coolant expansion tank cap. The coolant will be extremely hot.
If necessary, see page 116
for information on checking and topping-up the coolant level.
Contents | Top of Page
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VOLVO S80
Index
pg. 162 Index
A
ABS..........17
ABS - warning light..........27
Accessory lights..........29
Adjusting the steering wheel..........36
Advanced User Mode (AUM) - radio..........143
Air conditioning..........45- 49
Air filter - engine..........117
Air pump system..........116
Air vents..........44
Airbag (SIPS)..........8
Airbag (SRS)..........4
Alarm..........65, 66
Alarm - "panic" function..........65
ALR/ELR..........14
Anti-lock Brake System (ABS)..........17
Anti-lock Brake System - warning light..........27
Antifreeze..........87, 116
Approach lighting..........60
Ashtrays..........38
Audio systems..........135
cassette deck..........146
CD player..........144
HU -611 - overview..........136
HU -801 - overview..........137
radio..........140
specifications..........149
AUM (Advanced User Mode) - radio..........143
Automatic car washing..........113
Automatic Locking Retractor (ALR)..........14
Automatic transmission
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