Buick 1993 Century Owner's Manual page 286

Explanation of Scheduled Maintenance Services
Below are explanations of the services listed in Schedule
I and Schedule
II.
The proper fluids and lubricants to use are listed in
Section D. Make sure whoever services your vehicle uses
ITEM
NO. SERVICE
1
Engine
Oil
and Filter Change-Always use
SG Energy Conserving 1 1 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 SAE
10W-30), see "Engine Oil" in the Index.
2 Chassis Lubrication-Lubricate the transaxle
shift linkage, parking brake cable guides,
underbody contact points and linkage. If your
vehicle is equipped with grease fittings, lubricate
the suspension and steering linkage.
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives the vehicle.
NOTE: To determine your engine's displacement and
code, see "Engine Identification" in the Index.
ITEM
NO. SERVICE
3
Throttle Body Mounting Bolt Torque (3300 V6
Code
N
Engine Only)*-Check the,torque of
the mounting bolts and/or nuts.
4 Tire and Wheel Rotation and Inspection-For
proper wear and maximum tire life, rotate your
tires following the instructions in this manual.
See "Tires, Inspection & Rotation" in the Index.
Check the tires for uneven wear or damage. If
you see irregular or premature wear, check the
wheel alignment. Check for damaged wheels als
*An Emission Control Service.
~2
The
U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the.emission warranty
or limit recall liability prior to the completion of vehicle useful life. General Motors, however, urges that all recommended maintenance services be
performed at the indicated intervals and the maintenance be recorded in "Section E: Maintenance Record."
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