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When you open the hood on the 3.1L L82 engine, you'll see:
D
A. Engine Coolant E. Engine Oil Dipstick I. Windshield Washer
Recovery Tank F. Automatic Transaxle Dipstick
Fluid Reservoir
B. Radiator Fill
Cap G. Brake Fluid Reservoir J. Battery (located under
C. Power Steering Reservoir
H. Air Filter Windshield Washer
D. Engine Oil Fill
Cap Fluid Reservoir)
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When you open the hood of the 3.8L L36 engine, you’ll see:
r
A. Engine Coolant
Recovery Tank
B. Radiator Fill Cap
C. Power Steering Reservoir
D. Engine Oil Dipstick
It‘ A
E. Engine Oil Fill Cap
F. Automatic Transaxle Dipstick
G. Brake Fluid Reservoir
H. Air Filter
I. Windshield Washer
Fluid Reservoir
J. Battery (located under
Windshield Washer Fluid
Reservoir)
6-9
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Page 238 of 356
1
To check or replace the air filter, remove the four screws
and pull off
the cover.
Pull out the filter. Be sure to install the air filter and
install the cover tightly when you are finished.
Refer to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the Index.
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L
Operating the engine with the air cleaner off
can cause you or others to be burned. The air
cleaner not only cleans the air, it stops flame if
the engine backfires.
If it isn’t there, and the
engine backfires, you could be burned. Don’t
drive with it
off, and be careful working on the
engine with the air cleaner
off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine
oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of these conditions:
0 In heavy city traffic where the outside temperature
regularly reaches
90°F (32°C) or higher.
In hilly or mountainous ten-ain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
See “Scheduled Maintenance Services”
in the Index.
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Page 283 of 356

Capacities and Specifications
Automatic Transaxle
Pan Removal and Replacement .............................. 7 quarts (6.7 L)
When draiizilzg/replacil.Ig convertec more,fluid may be needed.
Cooling System Including Reservoir
3.1L(CodeM) ...................................... 11.6quarts(10.93L)
3.8L (Code
K) ....................................... 10.7 quarts (10.1 L)
Refrigerant (R-l34a), Air Conditioning* .................... 2.0 lbs (0.91 kg)
*See “Air Conditioning Refriger~-lnts”l~~tel- in th,is section.
Engine Crankcase
Oil and Filter Change ................................... 4.5 quarts (4.2 L)
Wheel Nut Torque .................................... 100 Ib-ft (140 N.m)
Fuel Tank ........................................... 17.1 gallons (64.7 L)
Wiper Blade Lengths
Type ............................................................. Pin
Length
.................................................. 20”(508mm)
Note: All capacities are approximate when adding. Be sure to Jill to the
approximate level, as recommended in this manual.
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Normal Maintenance Replacement Parts
Air Cleaner Filter All Engines ........... A 1208C
Battery
3.1L (Code M) ..................... 525 CCA
3.8L (Code
K) ...................... 690 CCA
Engine Oil Filter
PCV Valve
All Engines ........................... PF47
All Engines
........................ CV892C
Radiator Cap
All Engines ........................... RC27
RKE Batteries ........... Duracell Type DL 2016
(2) or equivalent
Spark Plugs
3.1L (Code M) ............... AC Type 41 -940
Gap: 0.060” (1.52 mm)
3.8L (Code K) ................ AC Type 41-921
Gap:
0.060” (1.52 mm)
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used.
If you’re not sure, ask your Buick dealer.
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Page 290 of 356

Maintenance Schedule
I Short Trip/City Defition I
Follow the Short Trip/City Maintenance Schedule if any
one
of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures
are below freezing.
0 Most trips include extensive idling (such as frequent
driving
in stop-and-go traffic).
0 Most trips are through dusty areas.
0 You frequently tow a trailer or use a carrier on top
of your vehicle.
0 If the vehicle is used for delivery service, police,
taxi, or other commercial application.
One of the reasons you should follow this schedule if you
operate your vehicle under any of these conditions is that
these conditions cause erzgirze oil to break down soonex
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Chassis Lubrication
(or
6 months, whichever occurs first).
At 6,000 Miles (10 000 km) - Then Every
12,000 Miles (20 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving
in dusty conditions.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement.
Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
These ilztervnls on.ly summarize mainteuance services.
Be sure to follow th.e complete maintenance schedule on
the following pages.
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Maintenance Schedule
Eg TripIHighway Definition
~~~ ~ ~~ ~
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down sloweK
I Long Tripmighway Intervals
.. ..
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every
12 months, whichever
occurs first).
At 7,500 Miles (12 500 km) - Then Every
15,000 Miles (25
000 km): Tire Rotation.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark
Plug Replacement.
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on
the following pages.
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