2003 PONTIAC BONNEVILLE engine oil

3. Remove the 3800 Series II V6 engine cover shield
to access the bleed valve.
3.1. Clean the area around the engine oil fill tube
and cap before removing. Twist the oil
fill
tube, with cap attached, counterclockwise
and remnvc! it^
3.2. If you have the supercharged engine,
remove the nut in the center of the cover
shield.
3.3. Lift the engine cover shield at the front, slide
the catch tab out
of the engine bracket and
remove the cover shield.
3.4. Put the oil
fill tube, with cap attached, in the
valve cover oil
fill hole until you’re ready to
replace the cover shield.
4. After the engine cools,
open the coolant air
bleed valve. There
is one bleed valve. It is
located on the
thermostat housing.
5-37

5. Fill the radiator with the proper DEX-COOL@
coolant mixture, up to the base of the filler
neck. See
Engine Coolant on page 5-26 for more
information about the proper coolant mixture.
If you see a stream of coolant coming from an air
bleed valve, close the valve. Otherwise, close
the valve after the radiator is filled.
6. Rinse or wipe any spilled coolant from the engine
and the compartment.
5-38
7. Replace the 3800 Series II V6 engine cover shield.
7.1. Remove the oil fill tube, with cap attached,
i.2. Insert the catch tab on the cover shield
under the bracket on the engine.
from the
valve cover.
7.3. Place the hole in the cover shield over the
hole in the valve cover. Install oil
fill tube and
cap by twisting clockwise.
7.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
8. Then fill the coolant recovery tank to the
FULL
COLD mark.

What to Add
When you do need brake fluid, use only DOT-3 brake
fluid. Refer to
Part D: Recommended Fluids and
Lubricants on page
6-24. Use new brake fluid from a
sealed container only.
Always clean the brake fluid reservoir cap and the area
around the cap before removing it. This will help
ke-- dirt from entering the reservoir.
I
With the wrong kind of fluid in your brake
system, your brakes may not work well, or
they may not even work at all. This could
cause a crash. Always use the proper
brake fluid.
* If you spill brake fluid on your vehicle’s painted
surfaces, the paint finish can be damaged. Be
careful not to spill brake fluid on your vehicle.
If you do, wash
it off immediately. See
“Appearance Care” in the Index.
Brake wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal firmly).
Notice:
Using the wrong fluid can badly damage brake
system parts. For example, just a few drops of mineral-based oil, such as engine oil,
in your
brake system can damage brake system
parts
so badly that they’ll have to be replaced.
Don’t let someone put in the wrong kind of fluid. The brake
wear warning sound --jeans that
soon your brakes won’t work well. That could
lead
KO an accident. wnen you near ine brake
wear warning sound, have your vehicle
serviced.
5-43

Capacities and Specifications
The following approximate capacities are given in English and metric conversions. Please refer to
Part D: Recommended Fluids and Lubricants on page 6-24 for more information.
Capacities
Capacities
Application English Metric
Automatic Transaxle
7.4 quarts 7.0 L
Engine Cooling System
10.0 quarts 9.5 L
Engine Oil with Filter
4.5 quarts 4.3 L -
Fuel Tank 18.5 gallons 70.0 L
Wheel Nut Torque 1 00 Ib-ft 140 Nam
Air Conditioning Refrigerant R134a 2.2 Ibs. 1 .O kg
All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specifications
5-1 00

Maintenance Schedule
Introduction
IMPORTANT:
XEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE AS
RECOMMENDED
I
a
protection
Plan
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties.
See your
Warranty and Owner Assistance booklet or your dealer
for details.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment.
All recommended maintenance procedures
are important. Improper vehicle maintenance can
even affect the quality of the air we breathe. Improper
fluid levels or the wrong tire inflation can increase
the level of emissions from your vehicle.
To help protect
our environment, and to keep your vehicle in good
condition, please maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended fluids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure
to follow recommended maintenance may not be
covered by warranty.
6-2

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:
Follow the Short Trip/City Scheduled Maintenance
if any
one of these conditions is true for your vehicle:
0 Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.
0 Most trips include extensive idling (such as frequent
0 You frequently tow a trailer or use a carrier on top
driving in
stop-and-go traffic).
of your vehicle.
0 If the vehicle is used for delivery service, police,
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
taxi or other commercial application.
Short TriplCity Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (IO 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Engine Air Cleaner
Filter Inspection,
if driving in dusty conditions.
Every 30,000 Miles (50 000 km): Engine Air Cleaner
Filter Replacement. Supercharger Oil Check
(or every
36 months, whichever occurs first)
(3800 Code 1 V6 engine only).
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150 000 Miles (240 000 km): Cooling System
Service [nr every 60 months, whichever nccIJrs
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-5

Long Trip/Highway Definition
Follow this scheduled maintenance only if none of the
conditions from the Short Trip/City Scheduled
Maintenance are true.
Do not use this schedule if the
vehicle
is used for trailer towing, driven in a dusty area
or used
off paved roads. Use the Short Trip/City
schedule for these conditions
Driving a vehicle with a fully warmed engine under
highway conditions will cause engine oil to break down
slower.
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs
first). Tire Rotation.
Every 30,000 Miles (50 000 km): Supercharger Oil
Check (or every 36 months, whichever occurs first)
(3800 Code 1 V6 engine only). Engine Air Cleaner Filter
Replacement.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Short Trip/City Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(1 66
000 km) should be repeated after 100,000 miles
(166
000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240
000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-18
and Part C: Periodic Maintenance Inspections on
page 6-22.
6-6

Footnotes
t The U.S. Environmental Protection Agency or the
California Air Resources Board 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 the vehicle
's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
*If your vehicle has the GM Oil Life SystemTM,
a
computer system lets you know when to change the oil
and filter. This is based on engine revolutions and
engine temperature and not on mileage. Based
on driving conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oii life
system to work properly, you must reset the system
every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. An ENGINE
OIL CHANGE SOON message
will come on. Change your oil as soon as possible
within the next two times you stop for fuel. It is possible
that, if you are driving under the best conditions, the
oil life system may not indicate that an oil change
is necessary for over a year. However, your engine oil
and filter must be changed at least once a year and
at this time the system must be reset. It is also
important to check your oil regularly and keep it at the
proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles
(5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. See Engine Oil on
page
5-15 for information on resetting the system.
@ Whenever the tires are rotated, the Check Tire
Pressure §ystem must be reset.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-23.
3,000 Miles (5 000 km)
0 Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
(See footnote
*.)
6,000 Miles (IO 000 km)
u
n U
Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
(See footnote
*.)
page 5-65 for proper rotation pattern and additional
information.
(See footnote @.) (See footnote +.)
n-4-4- r?-- -I-:-- I 4:-- -...A n-+-+:-- -- I wlalc LII ~a. UGG I 11 G 11 I~JG~LIVII a1 IU I IvLauvII VII
9,000 Miles (15 000 km)
U Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
(See footnote
*.)
6-7