Volvo XC90 Owner's Manual page 430

STARTING AND DRIVING
Pilot Assist* (p. 296)
•
Tire sealing system (p. 545)
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428
Winter driving
It is important to check the vehicle before
driving in cold/snowy conditions to make
sure it can be driven safely.
Before the cold season arrives:
Make sure the engine coolant contains
•
50% antifreeze. This mixture helps pro-
tect the engine from frost erosion down to
approx. –35 °C (–31 °F). Do not mix dif-
ferent types of antifreeze as this could
pose a health risk.
Keep the fuel tank well filled to prevent
•
condensation from forming.
Check the viscosity of the engine oil. Oil
•
with low viscosity (thinner oil) improves
cold-weather starting and reduces fuel
consumption when driving with a cold
engine.
CAUTION
Low-viscosity oil should not be used with
hard driving or in hot weather.
Check the condition and charge level of
•
the start battery. Cold weather places
greater demands on the start battery and
reduces its capacity.
Use washer fluid containing antifreeze to
•
help prevent ice from forming in the
washer fluid reservoir.
Slippery driving conditions
To help optimize traction and roadholding,
Volvo recommends using snow tires on all
wheels whenever there is a risk of snow or ice
on the road.
NOTE
Certain countries require use of winter tires
by law. Not all countries permit the use of
studded tires.
Practice driving on slippery surfaces under
controlled conditions to learn how the vehicle
reacts.
Related information
Snow tires (p. 543)
•
Snow chains (p. 544)
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Braking on salted roads (p. 397)
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Braking on wet roads (p. 397)
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Filling washer fluid (p. 637)
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Start battery (p. 595)
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Replacing windshield wiper blades
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(p. 635)
Changing rear window wipers (p. 634)
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Refilling coolant (p. 586)
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* Option/accessory.