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LUBRICATION
the drain cock in the lower radiator tank. On 6-cylin-
der engines, remove the single drain plug in the
right side of the engine and open the drain cock in
the lower radiator tank.
Discard old solutions.
Refill the cooling system with water and protect
against corrosion by adding Cooling System Rust Re-
sistor, Part Number 2421778, or refill with water and
Permanent Type Anti-Freeze, Part Number 1316209,
depending upon the season. All models are equipped
with 180 degree thermostats. With this thermostat,
only permanent type anti-freeze should be used. If an
alcohol-type anti-freeze is used, a 160 degree thermo-
stat should be installed.
CAUTION: The
180 degree thermostat must be used
on cars equipped with
air
conditioning.
Except for AV-1, AV-2 models equipped with the
recirculating type air conditioning unit, all vehicles
equipped with air conditioning should have the cool-
ing system protected with permanent type anti-freeze
to a temperature of -15°F.
to prevent freezing in
the heater core.
In the winter, the cooling system of
all
vehicles
equipped with air conditioning, should have sufficient
anti-freeze to provide protection to the lowest antici-
pated temperature range.
FREQUENCY OF OIL CHANGES
The engine oil should be changed every three (3)
months, or 4,000 miles, whichever comes first.
SEVERE OPERATING CONDITIONS,
such as fre-
quent driving on dusty roads, or in sandy geographic
areas, or unusually short trip driving in cold weather
may reasonably require oil changes more frequently
than every three months. Under these conditions,
consult and follow the advise of any Chrysler Motors
Corporation Authorized Dealer's Service Manager.
TAXI AND POLICE DUTY,
severe service such as
taxi and city police driving, which are principally short
trip operations including frequent and prolonged
id-
ling, require more frequent oil changes on a regular
schedule.
F w
this service, it is recommended that
engine oil be changed at least every
2,000
miles, with
filter changes at least every 2nd oil change. In addi-
tion, for this type of service, the crankcase ventilation
system should be serviced at each oil change. A s u g
gested practice for taxi and police operations is to
maintain spare valves, installing a clean valve at each
oil change. Valves so removed can be cleaned by soak-
ing overnight in carburetor cleaner, followed by dry-
ing with compressed air.
During Break-in
Cars should be driven moderately during the first
300 miles. After the initial
50
miles, speeds up to
50 to 60 mph are desirable. While cruising, brief full-
throttle accelerations contribute to a good break-in.
Wide-open throttle accelerations in low gear can be
detrimental and should be avoided for at least 500
miles.
The oil installed in the engine at the factory is a
high quality lubricant, classified "For Service
MS,"
and
should
be
retained
until the
first
regularly sched-
uled three-month or 4,000-mile oil change, whichever
comes first. If it becomes necessary to add oil during
this initial period, an oil with the "For Service MS"
classification and of the proper viscosity grade should
be used.
Nondetergent or straight mineral oils must
never be used.
Frequently, a new engine will consume some oil
during its first few thousand miles of operation. This
should be considered as a normal part of the break-
in and not to be interpreted as an indication of diffi-
culty.
ENGINE OIL-SELECTION
OF
For best performance, and to provide for maximum
protection of all engines for all types of operation,
only those lubricants should be selected which:
(a) Conform to the requirements of the API classi-
fication "FOR SERVICE MS."
(b) Have the proper SAE grade number for the ex-
pected temperature range.
Oil
Viscosity Recommendations
Low viscosity oils make engine starting easier in
cold weather. Modern SAE 5W-20 grade oils have been
subjected to extensive engineering evaluation and may
be safely used as recommended. As stated in the ac-
companying chart, when
minimum
temperatures are
expected to be consistently below +1O0F., oils of the
SAE 5W-20 viscosity may be used.
M ulti-Grades
SAE 2OW-40
Where temperatures are consistently above
+32OF.
SAE 1OW-30
Suitable for year long operation in many
p a h
of the
U.S.;
may be used where temperatures
occasionally drop as low as
-
10°F.
Recommended where minimum temperatures are
consistently below
+
10OF.
SAE 5W-20
Single Grudes
SAE 30
Where temperatures are consistently above
SAE
1OW
Where temperatures range between
+32OF.
+
32OF.
and -1OOF.
In order to help determine whether your region
"consistently reaches minimum temperatures of
+
1O0F.," the accompanying weather map (Fig. 24) i s
provided. If your region
is
in the shaded area, SAE
5W-20 oil should be used during the winter months.
Lubricants which do not have both an SAE grade
number and an MS Service classification on the con-
tainer
should not
be used.
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