Before A Long Distance Trip - Volvo 780 Owner's Manual

1987

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1987 Volvo 780

If you wish to check your car before the approach of cold weather, the following advice is worth noting:

Make sure that the engine coolant contains at least 50 percent antifreeze: that is, 5.0 qts. (4.25 liters)

Volvo type C blue-green glycol additive. This gives protection against freezing down to -31°F(-35°C).

See section "Coolant".

Try to keep the fuel tank well filled - this prevents the formation of condensation in the tank.

In addition in extremely cold weather conditions it is worthwhile to add fuel line deicer before refueling.

Use the correct grade of engine oil to avoid difficulties when starting. See section "Engine oil".

The load placed on the battery is greater during the winter since the heater, windshield wipers,

lighting etc. are used more often.

Moreover, the capacity of the battery decreases as the temperature drops. In very cold weather, a poorly

charged battery can freeze and be damaged. It is therefore advisable to check the state of charge more

frequently and spray an anti-rust oil on the battery posts.

To prevent the washer reservoir from freezing, add washer solvents containing antifreeze. This is

important since dirt is often splashed on the windshield during winter driving, thus requiring frequent

use of the washers and wipers.

The Volvo washer solvent should be diluted as follows:

Down to 14°F (-10°C): 1 part anti-freeze and 4 parts water

Down to 5°F (-15°C): 1 part anti-freeze and 3 parts water

Down to 0°F (-18°C): 1 part anti-freeze and 2 parts water

Down to - 18°F (-28°C): 1 part anti-freeze and 1 part water

pg. 56 Long distance trip