Volvo 164 Instruction Book - page 56
rust-proofing effectiveness of the coolant.
I t is a good idea when topping up with
coolant to have the concentration check-
ed
Experience has also shown that extremely
weak anti-freeze solutions (10-25 %
)
are
very unfavourable from the point of view of
rust protection. For this reason, the quan-
tity of anti-freeze should amount to about
50 % of the coolant, that is, 6.2 litres (11
I mp. pints=13 U.S. pints), this lowering
the freezing point to -35° C (31
0
F).
Radiator spirit is not recommended as an
anti-freeze agent since it evaporates at
normal engine temperature.
Engine lubricating system
During the winter multigrade oil or engine
oil SAE 10 W should be used for the en-
gine lubricating system. At very low tempe-
ratures (below -20° C=-4° F) multigrade
oil SAE 5 W-20 is recommended. These
oils reach the lubricating points in the
engine more easily at low temperature
and also facilitate cold starting. See page
37.
Electrical system
The electrical system in the vehicle is
subjected to greater stresses during the
winter than during the warm summer
months. The lighting and starter motor are
used more and since the capacity of the
battery is also considerably lower at low
air temperature, the state of charge must
be checked more often and, if necessary,
the battery charged. If the battery voltage
i s excessively low, there is risk of the
battery being damaged by frost.
Brake system
During very cold weather the brakes are
subjected to splash and condensation
water which can result in the handbrake
freezing up if left on.
When you park the car, do not apply the
handbrake but engage the first gear or
reverse and if possible place blocks be-
hind the wheels. See also page 23.
Windscreen washer
I n the same way as anti-freeze is added to
the cooling system during the winter to
prevent frost damage, anti-freeze should
also be added to the water container for
SERVICING
the windscreen washers. This is particular-
l y important because the windscreen dur-
i ng the winter frequently becomes dirty
and is often splashed with water which
rapidly freezes and thus necessitates the
frequent use of the windscreen washer
and wipers. Your Volvo dealer can supply
you with suitable anti-freeze for this pur-
pose.
Anti-freeze for door locks
A frozen door lock is one of the most irri-
tating things that can happen to a car-
owner. Many valuable minutes early in the
morning can be wasted warming up keys
and melting ice in locks. Remember this
i n good time and lubricate the locks in
advance with some suitable anti-freeze
agent. Such agents are now available in
small handy tubes which can easily be
placed in a handbag or coat pocket.
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