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Maintenance Schedule
Section
A:
Scheduled Maintenance Services
(Cont.)
Dplanatiun of Scheduled Maintenance Services
Below are explanations of the services listed in Schedules I
and 11.
290
ITEM
NO.
1
2
SERVICE
Engine Oil and Filter Change*
-
Always use SG
Energy Conserving I1 Oils of proper viscosity. The
SG
designation may be shown alone or in
combination with others, such as SG/CC, SG/CD,
or
SF,
SG, CC,
etc. To determine the preferred
viscosity for your vehicle's engine (e.g., SAE
5W-30 or 1OW-30) see "Engine Oil'' in the Index.
Engine Idle Speed Check*
-
Check the idle speed
and adjust it to underhood label specifications.
*An Emission Control Service.
The proper fluids and lubricants to use are listed in Section
D. Make sure whoever services your vehicle uses these. All
parts should be replaced and all necessary
repairs done
before you or anyone else drives the vehicle.
ITEM
NO. SERVICE
3
Cooling System Service*
-
Drain, flush and refill
the system with new or approved recycled coolant
conforming to
GM
Specification 4038M. Keep
coolant at the proper mixture as specified. See
"Coolant" in the Index. This provides proper freeze
protection, corrosion inhibitor level, and engine
operating temperature.
Inspect hoses and replace if they are cracked,
swollen, or deteriorated. Tighten screw-type hose
clamps. Clean the outside of the radiator and air
conditioning condenser. Wash the pressure cap and
neck.
To help ensure proper operation, we recommend a
pressure test of both the cooling system and the
pressure cap.
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