1993 BUICK ROADMASTER service

7.
8.
To help ensure-proper operation, we recommena a
pressure test of both’the cooling system and the
pressure cap. If you do not use your vehicle under any of these
conditions, change both the fluid and filter every
100,000 miles (1 60 000 km).
Front Wheel Bearing Repack - When your 9. Spark Plug Replacement* - Replace spark plugs
vehicle is used in such service as police work, as a with the proper type. See “Specifications Chart.’’ in
taxi or
in door-to-door delivery, clean and repackthe the Index.
front wheel bearings at each brake relining or
15,000 Spark plug Wire Inspection*? - Inspect for
miles (25 000 km), whichever comes first. If you
don’t use your vehicle in such service, clean
and
repack the bearings at each brake relining or 30,000 -
miles (50 000 km) whichever comes first. burns, cracks .or other damage. Check the boot fit
at
the distributor and at the spark plugs. Replace wires
as. needed.
Transmission Service - Change both the fluid and
filter every
15,000 miles (25 000 km) if the vehicle
is mainly driven under one or ‘more
of these
conditions:
In heayy city traffic where the outside
temperature regularly reaches
‘90 OF (32 C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police car or delivery
service.
11. Exhaust Gas Recirculation (EGR) System
Inspection*?
- Conduct the EGR system service
as described in the service manual.
To purchase a
service manual, see “Service Publications” in the
Index.
12. Air Cleaner Filter Replacement* - Replace every
30,000 miles (50 000 km) or more ofkn under dusty
conditions. Ask your dealer for the proper
replacement intervals for your driving conditions.
307
I

‘X: An Emission Control Service.
TheU.S. Ehyironmental Protection Agency has determined that the failure \
to perfo-
this maintenance itein will not nullify the emission warranty or limit recall liability prior to thecompletion of vel&cle. ’ useful Iife. Geneial Motors, however,.urges that all recommended maintenance services be performed.at the indicated intervals and the maintenance be recorded in “Section E:Maintenance Record”.

At Each Fuel Fill.
(It is important for you ‘or a service station. attendant
to perform these underhood
.ch~ecks ,,at each fuel fill.)
CHECK OR
SERVICE
Engine Oil
Level
Engine Coolant
Level
Winashield Washer Fluid
Level
.
WHAT TO DO .
Check the engine oil level and add
the. proper
oil. if necessary. See
Tngine Oil” in the Index for further
details.
Check the engine coolant level
In thy
coolant recovery tank and add the
’ proper coolant mix if necessary., See. “Coolant” in the Index for further
details.
Check the windshield washer fluid
level
in ‘the windshield washer tank
and add the proper fluid
if necessary.
See “Windshield Washer Fluid” in
the Index for ‘further details.
,, .,
At Least Once a Month
CHECK OR
‘SERVICE
Tire Inflation
WHAT TO DO ;
Check tire .inflation. Make sure they
are inflated to.the pressures specified
on the Tire-Loading Information
label located on, the rear edge
.of the
,driver’s door. See “Tires”
in the
Index for further details.
At Least Once a Year
s
CHECK-OR
I ’ SERVICE
Key Lock
I Cylinders
WHAT TO DO
Lubricate the key lock cylinders with
the. lubricant specified in Section D.
‘Lubricate all body door hinges. Also
lubricate all
hinges and. latches,
including those for, the hood, glove
box door and console .door. Section
D tells you what to use.
..
309

.. .
INSPECTION
OR SERVICE 1 WHAT SHOULD BE DONE
Steering and
Suspension
Inspection Inipect
the front and re? suspension
and steering. system for, damaged,
loose
or missing parts,.signs of wear,
or lack
of lubrication. Inspect the
power steering lines and. hoses for
proper hookup, binding, leaks, cracks, chafing, etc.
.
Exhaust System
Inspection
~~
' Inspect, the complete exhaust
. system. Inspect the body near the
exhaust system.
Look for broken,
damaged, miming
or out-of-position
parts
as' well as open seams, holes,
loose connections,
or other
conditions which could cause a heat
build-up in the floor pan or could let
exhaust fumes into the vehicle. See "Engine Exhaust" in the Iridex.
~~~
Throttle Inspect the throttle linkage. for
Linkage interference or binding, and for
1nspectio.n damaged or missing parts.. Replace
parts as needed.
~~~~~~ ~ ~ ~ ~ ~

INSPECTION
OR SERVICE
Rear. Axle
Service
WHAT SHOULD BE DONE
Check the gear lubricant.leve1 in’ the
rear axle and add if needed. See
“Rear Axle” in the Index. A fluid
loss in
this system may indicate a
problem. Check the system and
repair it if needed. If your vehicle is
used- to pull a trailer, have the rear
,axle gear .lubricant changed every
7,500 mile$ (12 500 kin).
.. .
INSPECTION
OR SERVICE
Brake System
Irispection.
313
!

Section D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part
number or specification may be obtained from your
GM dealer.:
USAGE
Engine .Oil
Engine Coolant
.-.
. , ’.,
FLUID/LUBRICANT
GM Goodwrench Motor Oil or
equivalent for
API service SG
Energy Conserving I1 oils of the
proper viscosity. The
“SG”
designation may be shown alone or
in combination with others, such as
“SF,SG,CC,” etc,
To determine the
preferred viscosity for your vehicle’s engine, see “Engine Oil” in the
Index.
~‘SGfCC,” ‘%G/CD,” or
50/50 mixture of water (preferably
distilled) and goad quality ethylene
glycol base antifreeze (GM
Part No.
1052753 or equivalent) conforming
to GM Specification 1825M or
.approved recycled coolant conforming to
GM specification
1825M.
USAGE
Hydraulic Brake
System
I. ..
Power Steering
System
Automatic
Transmission
Key Lock
Cylinders
Automatic
Transmission
Shift Linkage
FLUIDILUBRICANT. .
Delco Supreme ll@ Brake Fluid
(GM Part No. 1052535) or
equivalent DOT3 brake fluid.
Chassis lubricant. meeting
requirements
of NLGI Grade 2,
Category LB or GC-LB (GM Part
No. ,1052497 or equivalent).
GM Hydraulic Power Steering Fluid
(GM Part No. 1052884) or
equivalent. ,*
DEXRON~ IIE Automatic
Transmission Fluid
(CM Part No.
-12345881).
Lubricate with Multi-Purpose Lubricant
(GM Part No. 12345120),
synthetic SAE 5W-30 engine oil or
silicone lubricant (GM Part No.
1052276 or 1052277).
Chassis lubricant . meeting
requirements
of NLGI Grade 2,
Category LB or GC-LB (GM Part
No. 1052497 or equivalent).
314

Maintenance Performed column, insert the, numbers
Maintenance Record
F DATE ODOMETER
I I .~
READING.. . SERVICED BY . . MAINTENANCE PERFORMED
.I ,. .- ' : :- - -. ,j _,
I
,. , . -,

~.
Maint.enance Record
ODOMETER
DATE READING-
. SERVICED. BY MAINTENANCE PERFORMED
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