Pontiac 1955 Owner's Manual page 32

The car should be lubricated at end of the first 1,000 miles and there
after at 2,000 mile intervals, except when driven under the conditions
outlined above.
CHASSIS LUBRICATION
STEERING GEAR, MANUAL AND POWER-Lubricant change
is not necessary unless the unit is disassembled for repair. At each
chassis lubrication, unit should be checked for leaks. If there is evidence
of leakage from the steering gear, the leak should be corrected and All-
Season Steering Gear Lubricant added to bring to proper level. If unit
does not leak, it is only necessary to check level once yearly (preferably
in the fall).
POWER STEERING HYDRAULIC SYSTEM-If there are any
leaks in the Hydraulic system, they should be corrected. Add fluid
recommended for Hydra-Matic (page 30) to bring level up to mark near
top of reservoir. In an emergency, a good grade of S.A.E. 10W oil may
be used: replace with specified fluid as soon as possible. It is not neces
sary to change fluid unless unit is disassembled for repairs.
SYNCHRO-MESH TRANSMISSION-Lubricant change in the
Synchro-Mesh transmission is not recommended unless repair work is
being done. Check transmission for leaks at each chassis lubrication. If
there is evidence of leakage the leak should be corrected and lubricant
added if needed. Refill capacity is 1^4 pints.
Use Extreme Pressure Gear Lubricant or Multi-Purpose Gear Lubri
cant S.A.E. 80 or 90 (no special additives to these lubricants are re
quired or recommended).
REAR AXLE—Lubricant change in the rear axle in not recommended,
unless repair work is being done. The rear axle should be checked for
leaks at each chassis lubrication. If there is evidence of leakage the leak
should be corrected and lubricant added if needed. Use S.A.E. 90
Hypoid Lubricant (suitable for passenger car duty) in the rear axle.
After the unit is thoroughly broken in (several thousand miles), Multi-
Purpose Gear Lubricant may be added on the responsibility of the
lubricant supplier (no special additives to these lubricants are required
or recommended). Rear axle capacity is 3J4 pints.
MANIFOLD HEAT CONTROL VALVE-Check for freedom of
movement of manifold heat control valve; if sticking, lubricate bush
ings with graphite in alcohol.
BATTERY—The level of the electrolyte solution in your battery
should be kept up to at least the bottom of the vent well. Check this
level at regular lubrication intervals (more frequently in extremely hot
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