Page 212 of 308

Many gasolines are now blended with 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 deposit control additives and
oxygenates, and if they have been reformulated to
reduce vehicle emissions.
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.
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
210
ProCarManuals.com
Page 220 of 308

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.
I NOTICE:
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 Buick dealer is
ready to advise
if you think something should be added.
When to Change Engine Qil
See if any one of these is true for you:
0 Most trips are less than 4 miles (6 km).
0 It’s below freezing outside and most trips are less
than
10 miles ( 16 km).
0 The engine is at low speed most of the time (as in
door-to-door delivery, or in stop-and-go traffic).
0 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 km) or 3 months -- whichever comes first.
If none of them is true, change the oil every 7,500 miles
(12 500 km) or 12 months -- whichever comes first.
Change the filter at the first oil change and at every
other
oil change after that.
218
ProCarManuals.com
Page 297 of 308

Clock Setting ............................... 128. 132
Comfort Controls
................................ 12 1
Compact Disc Player ............................. 129
Compact Disc Care
.............................. 136
Compact Spare Tire
.............................. 205
Control
of a Vehicle .............................. 143
Controls. Features and
............................. 69
Convenience. Net
................................ 108
Coolant. Engine
................................. 223
WarningGage
................................ 116
Heater
................................... 83. 2 19
Safety Warnings .............................. 187
Courtesy Lights
................................. 105
Courtesy Transportation
........................... 286
Cruise Control
................................... 98
Customer Assistance Hearing /Speech Impaired
...................... 285
Satisfaction Procedure
......................... 283
Daytime Running Lights
......................... 103
Defensive Driving
............................... 140
Defogger. Rear Window
.......................... 125
Defrost
........................................ 121
Dimensions Chart
................................ 259
Disposal of Used Oil
............................. 2 19
DoorLocks
...................................... 71
Downshifting
.................................... 84
Driving
City
........................................ 155
Curve
...................................... 147
Defensive
................................... 140 Drunken
.................................... 140
Foreign Operation
............................. 210 . Freeway ..................................... 156
Hill and Mountain
............................. 159
LongDistance
................................ 157
Night
....................................... 152
Rain
........................................ 153
Through Deep Standing Water
.................... 82
Winter
...................................... 160
Electrical Equipment. Adding
................. 125. 253
Emergency Braking
..................................... 146
Starting
..................................... 173
Towing
..................................... 179
Steering
..................................... 146
Engine Block Heater (Coolant Heater)
................ 83, 219
Coolant
..................................... 223
Coolant Temperature Warning Gage
.............. 116
Exhaust
...................................... 91
Identification
(VIN) ........................... 253
Oil
......................................... 214
Oil Additives
................................. 218
Oil Pressure Warning Gage
...................... 117
Overheating
.................................. 187
Starting
....................................... 80
Ethanol in Gasoline .............................. 209
Exhaust
......................................... 91
Expectant Mothers, Use of Safety Belts
............... 38
Extender, Safety Belt
.............................. 67
295
.- . ~ .. ...
ProCarManuals.com