fuel BUICK ROADMASTER 1993 User Guide

Cap.acities and, Specifications
CRANKCASE CAPACITY (With Filter) -
5.0 quarts/4.7 liters
TRANSMKSSIQN -
Drain and Refill - 1.0.0. pints/4.7 lifers
Overhaul
- 22.4 pints/f0.6.. liters
MAINTENANCE .ITEM PART NUMBERS3
Air Cleaner - A1.135C
Fuel Filtir
- GF580 ,
Oil Filter - PF2S
PCV Valve - C.V789C
’ PCV Filter - FB59
Radiator Cap - RC27
Spark Plug
- CR43TS, GAP 0.035”
1 8th Character of the Vehicle Identification Number.
2 Made in a GM plant in the United States,
3 Part: numbers are AC type.
4. Air Conditioning Refrigerant - Not all air conditioning refrigerants are the same. If the air conditioning system in your
vehicle needs refrigerant,
be- sure the proper refiigerant is used. If you’re not sure ask your Buick dealer;
295

Part 7 Main.tenance Schedule
dependability and emission control performance. Part
7 includes:
Introduction
......................................................................
A Word About Maintenance .....................................................
Your Vehicle and the Environment ................................................
How This Part is Organized .....................................................
Section A: Scheduled Maintenance Services .............................................
Using Your Maintenance Schedules ...............................................
SelectingtheRightSchedule ....................................................
Schedule1 ...................................................................
Schedule11 ..................................................................
Explanation of Scheduled Maintenance Services .....................................
Section B: Owner Checks and Services .................................................
AtEachFuelFill ..............................................................
AtLeastOnceaMonth .........................................................
AtLeastOnceaYear ...........................................................
Section C: Periodic Maintenance Inspections ............................................
Section D: Recommended Fluids and Lubricants .........................................
Section E: Maintenance Record .......................................................

“Section B: Owner Checks and Services” tells you what
should &.checked whenever
you stop-for fuel. It also
explains what
’you can easily do to heip keep your
vehicle ia good condition.
,“Section
C: Periodic Maintenance Inspections” explains
important inspections that
your Buick dealer’s service
department or ;another qualified service center should
perform.

I
Section A: Scheduled Maintenance
Services
Using Your Maintenance Schedules
This section tells you the maintenance services you
should have done and when
you should schedule them.
Your Buick dealer knows your vehicle best and wants
you to be happy with it.
If you go to your dealer for your
service needs, you’ll
know that GM-trained and
supported service people will perform the work using
genuine GM parts.
These schedules are
for vehicles that:
carry passengers and cargo within recommefided
limits.
You will find these limits on your vehicle’s
Tire-Loading Information label. See “Loading Your
Vehicle” in the Index.
are driven on reasonable road surfaces within legal
driving limits.
a use the recommended unleaded fuel. See “Fuel” in
the Index.
Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how to decide which
schedule to follow:
Schedule I
Is any one of these true for your vehicle?
a Most trips are less than 4 miles (6 km).
Most trips are less than 10 miles (16 km) when
outside temperatures are below freezing.
The engine is at low speed most of the time (as in
door-to-door .deliveryy or in stop-and-go traffic).
0 You operate your vehicle in dusty areas.
You tow a trailer.
If any one (or more) of these is true.for your driving,
follow Schedule
I.
Schedule Il
Follow Schedule 11 only if none of the above conditions
is true.
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TO BE SERVICED
(See Explanation of
Scheduled Maintenance
' Months, Whiche'ver Services Following:
Miles (kilometers) or
WHEN TO PERFORM
I
Schedules I and 11y
Item No.
~ Occurs First
7. Front Wheel bearing
~~
Repack See Explanation of Scheduled
Maintenance Service
,Following Schedules I and I1
9. Spark Plug
Replacement*
Inspection*?
I 11. EGR System Inspection*? I
I 12. Air Cleaner Filter
Replacement*
13. Air Cleaner Inspection*?
14.Fuel Tank, Cap
& Lines
Inspection*?
15. Engine Timing &
Distributor Check*
~~
Every 30 000 mi
(50 000 km)
MILES (000)
- KILOMETERS (000)
75 80
J
The services shown in. this schedule up to 48 000 miles (80 00.0 km) should be performed after
48 000 miles at the same intervals.
* An Emission Control Service.
-f- The U.S. Environmental F'rotection 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 EMaintenance Record".

..
TO BE ,SERVICED
(See explanation of
Scheduled Maintenance Services Following
Schedules I'and
11)
Item No. - .
8. Transmission Service
9. Spark Plug Replacement"
10. Spark Plug. Wire.Inspection*T
11. EGR System Inspection*?
12. Air Cleaner Filter Replacement"
13. ~ir cleaner Inspection*?
14. Fuel Tank, Cap & Lines'Inspectiori*f
15. En&e Timing & Distributor Check!
WHEN TO PERFORM
., Miles (kilometers) or
Months, Whichever
Occurs First
See Explanation of Scheduled Maintenance
Services Following Schedules
I and 11
Every 30!000 mi. (50 000 km)
t-
KILOMETERS (000)
..
The'services shown in this schedule up to 45.000 miles (75 000 km) should be performed after 45 000
miles at the'same inte-Wals.
I I ..
* An Emission Control Service.
f 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. Gerieml Motors, however; urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be.recorded in "Section EMaintenance
Record".
305

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

I USAGE
Chassis
Lubrication
Front Wheel Bearings
USAGE
Rear Axle (Standard
Differential)
FLUID/LUBRICANT
Chassis lubricant meeting
requirements of NLGI Grade
2,
Category LB. or GC-LB (GM Part
No. 1052497 or equivalent).
Wheel bearing lubricant meeting
requirements of NLGI Grade
2,
Category GC or GC-LB (GM Part
No. 1051344 or equivalent).
Axle Lubricant
(GM Part No.
1052271) or SAE 8OW-90 %L-5
Gear Lubricant.
Axle Lubricant (GM Part
No.
1052271) or SAE 80W-90 GL-5
Gear Lubricant, and Limited-Slip
DifferentialLubricant Additive (GM
Part
No. 1052358) or equivalent
where required. See “Rear Axle” in
the .Index.
GM Optikleen@ Washer Solvent
(GM Part No. 10515.15) or
equivalent.
FLUIDlLUBRICANT
Rear Axle (Limited-Slip
Differential)
Windshield
Washer Solvent Hood Latch
Assembly
a. Pivots and Spring
Anchor
b. Release Pawl
Hood and Door
Hinges
Fuel Filler Door Hinge, Rear
.Compartment
Lid Hinges,
Wagon Tailgate
Hinge, Rear Folding Seat
~~
Weatherstrips a. Engine oil.
b. Chassis lubricant meeting
requirements
of NLGI Grade 2,
Category LB ‘or GC-LB (GM Part
No.
12346003 or equivalent).
Engine oil or Lubriplate Lubricant
(GM Part No.
1050109).
Engine oil ox: Lubriplate Lubricatn
(GM’Part No.
1050109).
Dielectric Silicone Grease (GM Part
No. 12345579 or equivalent).
See “Specifications Chart” in the Index for
recommended replacement filters, valves and spark
plugs.
315