1993 OLDSMOBILE SILHOUETTE spark plugs

Service & Appearance Care
218
Gasolines for Cleaner Air
Your use of gasoline with detergent
additives will help prevent deposits from
forming in your engine and fuel system.
That helps keep your engine in tune and
your emission control system working properly. It’s good for your vehicle, and
you’ll be doing your part for cleaner air.
Many gasolines are now blended with
materials called oxygenates. General
Motors recommends that you use
gasolines with these blending materials,
such as MTBE and ethanol. By doing
so, you can help clean the air, especially
in those parts of the country that have
high carbon monoxide levels.
In addition, some gasoline suppliers are
now producing reformulated gasolines.
These gasolines are specially designed
to reduce vehicle emissions. General Motors recommends that you use
reformulated gasoline. By doing
so, you
can help clean the air, especially in
those parts of the country that have high
ozone levels.
You should ask your service station
operators
if their gasolines contain
detergents and oxygenates, and
if they
have been reformulated to reduce
vehicle emissions.
”z
Fuels in Foreign Countries
If you plan on driving in another
country outside the
U.S. or Canada,
unleaded fuel may be hard to find.
Do
not use leaded gasoline. If you use even
one tankful, your emission controls
won’t work well or at all. With
continuous use, spark plugs can get
fouled, the exhaust system can corrode,
and your engine oil can deteriorate
quickly. Your vehicle’s oxygen sensor
will be damaged. All of that means
costly repairs that wouldn’t be covered
by your warranty.
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Engine Specifications
3.lL V6 Engine 3800 V6 Engine
VINEngineCode ................. D .............................. L
Type
............................ V6 ............................. V6
Displacement . . . . . . . . . . . . . . . . . . . . . 3.1 Liters . . . . . . . . . . . . . . . . . . . . . . . . 3.8 Liters
Compression Ratio
. . . . . . . . . . . . . . . . 8.5:l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5:l
Firing Order.
. . . . . . . . . . . . . . . . . . . . . 1-2-3-4-5-6 . . . . . . . . . . . . . . . . . . . . . . . 1-6-5-4-3-2
Thermostat Temperature Specification
. . 195" F (91 O C) . . . . . . . . . . . . . . . . . . . . . 195 OF (91 O C)
Normal Maintenance Replacement Pads
Air Cleaner Elemenr . . . . . . . . . . . . . . . AC Type A-773C . . . . . . . . . . . . . . . . . . AC Type A-974C
Engine Oil Filter
. . . . . . . . . . . . . . . . . . AC Type PF-51 . . . . . . . . . . . . . . . . . . . AC Type PF-47
PCV Valve
. . . . . . . . . . . . . . . . . . . . . . . AC Type CV-789C . . . . . . . . . . . . . . . . . AC Type CV-892C
Spark Plugs
. . . . . . . . . . . . . . . . . . . . . . AC Type oR43TS . . . . . . . . . . . . . . . . . , AC Type 41-600
Remote Lock Control Batteries (2)
. . . . DL 2016 . . . . . . . . . . . . . . . . . . . . . . . . . DL 2016
Gap:
0.045 inch (1.14
mm) Gap: 0.060 inch (1.52 mm)
271
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ITEM
NO.
5
6
7
SERVICE
Engine Accessory Drive Belt Inspection-
Inspect the drive belt for cracks, hying, wear and
proper tension. Replace as needed.
Cooling
System Service*-Drain, flush and refill
the system with new or approved recycled coolant
conforming to
GM Specification 1825M. Keep
coolant at the proper mixture as specified. See the
Index under Coolant. 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 recornmend a
pressure test of both the cooling system
and the
pressure cap.
Transaxle 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:
ITEM
NO. SERVICE
In heavy city traffic where the outside tem-
perature regularly reaches
90" F (32" C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police car or delivery
If you do not use your vehicle under any of
these conditions, change both the fluid and filter
every
100,OOO miles (160 000 km).
with the proper type. See the Index under
Replacement Parts.
9 Spark Plug Wire Inspection*-Inspect for burns,
cracks
or other damage. Check the boot fit at the
distributor or coils and at the spark plugs. Replace
wires as needed. service.
8 Spark Plug
Replacement*-Replace spark plugs
285
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USAGE
Hood Latch Assembly a. Pivots and Spring
b. Release Pawl Anchor
Hood and door hinges,
liftgate hinge and
linkage, fuel door
hinge, folding seat
hardware, rear
compartment lid hinges
Sliding Door Track
~
Weatherstrips
FWID/LUBRICANT
a. Engine oil.
b. Chassis lubricant meeting requirements of NLGI Grade 2, Category LB or GC-LB
(GM Part
No. 12346003 or 1052497, or equivalent).
Engine oil or Lubriplate Lubricant (GM Part
No. 1050109).
Lubriplate Lubricant aerosol (GM
Part No. 1052349) or equivalent white grease.
Dielectric Silicone Grease (GM
Part No. 12345579 or equivalent).
I See the Index under Replacement Parts for recommended replacement filters, valves and spark plugs.
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