oil additives OLDSMOBILE SILHOUETTE 1994 Owners Manual

Service &Appearance Care
184
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
deposit control additives and
oxygenates, and if they have been
reformulated to reduce vehicle
emissions.
Fuels in Forei’ 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
quicltly. Your vehicle’s oxygen sensor
will be damaged.
All of that means
costly repairs that wouldn’t be covered
by your warranty.
To check on fuel availability, ask an
auto club, or contact a major oil
company that does business in the
country where you’ll be driving.
You can also write us at the following
address for advice. Just tell
us where
you’re going and give your Vehicle
Identification Number (VIN).
General Motors Overseas
Distribution Corporation
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L1H 8P7
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As shown in the chart, SAE 5W-30 is
best for your vehicle. However, you can
use SAE 1OW-30 if it’s going
to be 0°F
(-18°C) or above. These numbers on an
oil container show
its viscosity, or
thickness.
Do not use other viscosity oils,
such as SAE 1OW-40 or SAE 20W-50.
If you cannot find oils with the new
“starburst” symbol on the front of the
container, you should look for and use
oils containing the following three things:
SH or SG
“SH’ or “SG’ must be on the oil container,
either by itself or combined with other
quality designations, such as “SHKD,”
“SH,SG,CD,” “SG/CD,” etc. These
letters show American Petroleum
Institute (API) levels of quality.
SAE 1OW-30 (3800 engine)
SAE 5W-30 (3100 engine)
Energy Conserving I1
Oils with these words on the
container will help you save fuel.
These three things are usually included
in a doughnut shaped logo (symbol) on
most containers.
If you cannot find oils
with the “starburst” symbol,
you should
look for oils with the doughnut shaped
symbol, containing the three things
noted above. If
you use oils that do not have
either the “starburst” symbol or an
API SH or
SG designation, you can
cause engine damage not covered
by your warranty.
GM Goodwrench@ oil (in Canada, GM
Engine Oil) meets all the requirements
for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your
Oldsmobile dealer is ready to advise if
you think something should be added.
When to Change Engine Oil
See if any one of these is true for you:
Most trips are less than 4 miles (6 ltm).
It’s below freezing outside and most
trips are less than
10 miles (16 ltm).
The engine is at low speed most of the
time
(as in door-to-door delivery, or in
stop-and-go traffic).
You tow a trailer often.
Most trips are through dusty places.
If any one of these is true for your vehicle,
then you need to change your
oil and
filter every 3,000 miles (5 000 ltm) or 3
months - whichever comes first.
If none
of them is true, change the oil
every
7,500 miles (12 500 ltm) or 12
months -whichever comes first.
Change the filter at the first oil change
and at every other oil change after that.
Engine Coolant Heater (Engine
Block Heater)
An engine coolant heater can be a big
help if you have to park outside in very
cold weather,
0°F (-18°C) or colder. If
your vehicle has this option, see
Engine
Coolant Heater in the Index. 193
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Drunken Driving .............................. 132
Electric Outside Mirror Control
...... 87
Electrical Equipment.
Adding
............................. 60. 117. 219
Electronic Level Control
............ 94. 206
Emergencies. Braking in
.................. 138
Emergencies on the Road
................ 157
Emergencies. Steering in
.................. 139
Emergency Starting
.......................... 158
Emergency Towing ........................... 162
Engine Coolant
................ 197, 224, 227
Engine Coolant Heater
....................... 61
Engine Coolant Temperature
Gage
............................................... 103
Engine Exhaust
............ 57. 68, 150, 154
Engine Identification
........................ 218
Engine Oil
......................................... 190
Additives
........................................ 193
Checking
& Adding ............... 190. 191
Disposing of Used Oil
................... 194
Energy Conserving
......................... 193
Pressure Gage
................................ 102
Pressure Indicator
......................... 101
Warning
.......................................... 193
When to Change
............................ 193
Engine Overheating
......................... 165
Engine Specifications
....................... 226
Engine. Starting
.................................. 58
Ethanol in Gasoline .......................... 183
Exhaust
Dangerous Gas
Parking with the Engine
in
............................. 57.
68. 150. 154
Running
................................... 67. 68
Expectant Mothers. Use
of Safety
Belts
................................................. 30
Expressway Driving
......................... 145
Extender. Safety Belt
......................... 41
Exterior Appearance
Fabric Cleaning
Fan Warnings
............ 159. 160. 167. 187
Filling the Fuel Tank ................ 185. 272
Filter Air Cleaner
............................ 194. 226
Oil
.......................................... 193. 226
Finish Care
....................................... 216
Flat Tire
............................................ 172
Flooded Engine
................................... 59
Fluid (see
Appearance
Care )
(see Appearance Care )
Flashers. Hazard Warning ............... 158
Flow-Through Ventilation
............... 116
Brake
...................................... 200. 227
Capacities
....................................... 224
Power Steering
.............. 199. 225. 227
Transaxle
....................... 195. 224. 227
Windshield Washer
................ 200. 227 Fluids
& Lubricants ......................... 227
Fog Lights
............................................ 76
Freeway Driving
............................... 145
Fuel
................................................... 183
Alcohol in Fuel
.............................. 183
Capacity
......................................... 185
Exhaust Warnings ..... 57. 68. 150. 154
Filling
Your Tank .......................... 185
Fuels with Alcohol
......................... 183
Gage
............................................... 100
In Foreign Countries ..................... 184
Low. Warning
................................ 101
Methanol in Fuel
........................... 183
Requirements ................................. 183
Fuse Panel and Usage .............. 220. 221
Fuses
& Circuit Breakers ................. 219
Anti-Lock Brakes Fuse
.................. 222
Injector Fuse
.................................. 223
Gages Coolant Temperature
.................... 103
Fuel
................................................ 100
Oil Pressure ................................... 102
Oil Pressure Indicator
................... 101
Tachometer
...................................... 99
Voltmeter
....................................... 103
Garage Door Opener Compartment
.. 80
Gasoline
............................................ 183
Gasoline Tank, Filling Your
............ 185
Gas Station Information .................. 272 265
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