fuel OLDSMOBILE BRAVADA 1997 User Guide

Before You Go Off-Roading
There are some things to do before you go out. For
example, be sure to have all necessary maintenance and
service work done. Check to make sure all underbody
shields (if
so equipped) are properly attached. Be sure
you read all the information about your
four-wheel-drive vehicle in this manual.
Is there enough
fuel?
Is the spare tire fully inflated? Are the fluid levels
up where they should be? What are the local laws that
apply to off-roading where you’ll be driving? If you
don’t know, you should check with law enforcement
people in the area. Will you be on someone’s private
land? If
so, be sure to get the necessary permission.
Loading Your Vehicle for Off-Road Driving
There are some important things to remember about
how to load your vehicle.
0 The heaviest things should be on the load floor and
forward of your rear axle. Put heavier items as far
forward as you can.
0 Be sure the load is secured properly, so driving on
the off-road terrain doesn’t toss things around.
0 Cargo on the load floor piled higher than
the seatbacks can be thrown forward
during
a sudden stop. You or your
passengers could be injured. Keep cargo
below the top of the seatbacks.
0 Unsecured cargo on the load floor can be
tossed about when driving over rough
terrain. You or your passengers can be
struck by flying objects. Secure the
cargo properly.
0 Heavy loads on the roof raise the vehicle’s
center of gravity, making
it more likely to
roll over. You can be seriously or fatally
injured if the vehicle rolls over. Put heavy
loads inside the cargo area, not on the roof.
Keep cargo in the cargo area
as far forward
and low
as possible.
You’ll find other important information in this manual.
See “Vehicle Loading,” “Luggage Carrier” and “Tires’’
in the Index.
ProCarManuals.com

If the water isn’t too deep, then drive through it slowly. At
fast speeds, water splashes on your ignition system and
your vehicle can stall. Stalling can also occur
if you get
your tailpipe under water. And, as long
as your tailpipe is
under water, you‘ll never be able to stzt your engine.
When you go through water. remember that when your
brakes get wet,
it may take you longer to stop.
I
Driving through rushing water can be dangerous.
Deep water can sweep your vehicle downstream and you and your passengers could drown. If it’s
only shallow water, it can still wash away the
ground from under your tires, and you could lose
traction and roll the vehicle over. Don’t drive
through rushing water.
See “Driving Through Water‘. in the Index for more
information
on driving through water.
After Off-Road Driving
Remove any brush or debris that has collected on the
underbody, chassis or under the hood. These
accumulations can be a fire hazard.
After operation
in mud or sand, have the brake linings
cleaned and checked. These substances can cause
steering, suspension, wheels, tires and exhaust system
for damage. Also, check the fuel lines and cooling
system for any leakage.
2 (.lazing and uneven braking. Check the body structure,
Your vehicle will require more frequent service due to
off-road use. Refer to the Maintenance Schedule for
additional information.
4-27
ProCarManuals.com

Know can trap exhaust gases under your vehicle.
This can cause deadly
CO (carbon monoxide) gas
to get inside. CO could overcome you and kill
you. You can’t see it or smell it,
so you might not
know it
is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking your exhaust pipe. And check
around again from time to time to be sure snow
doesn’t collect there.
Open a window just a little
on the side of the
vehicle that’s away from the wind. This will help
keep CO out.
Run your engine only as long as you must. This saves
fuel. When you
run the engine, make it go a little faster
than just idle. That is, push the accelerator slightly. This
uses less
fuel for the heat that you get and it keeps the
battery charged.
You will need a well-charged battery to
restart the vehicle, and possibly for signaling later on
with your headlamps. Let the heater run for awhile.
Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold.
But do it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or
so until help comes.
4-41
ProCarManuals.com

Loading Your Vehicle
The Certification/Tire label is found on the driver’s door
edge, above the door latch. The label shows the size of
your original tires and the inflation pressures needed to
obtain the gross weight capacity
of your vehicle. This is
called the
Gross Vehicle Weight Rating (GVWR). The
GVWR includes the weight
of the vehicle, all occupants,
fuel, cargo and trailer tongue weight,
if pulling a trailer.
The Certification/Tire label also tells you the maximum
weights
for the front and rear axles, called Gross Axle
Weight Rating (GAWR).
To find out the actual loads on your
front and rear axles, you need to
go to a weigh
station and weigh your vehicle.
Your retailer can help
you
with this. Be sure to spread out your load equally on
both sides
of the centerline.
Never exceed the GVWR for your vehicle,
or the
GAWR for either the front
or rear axle.
If you do have a heavy load, you should spread it out.
Similar appearing vehicles may have different GVWR’s
and payloads. Please note
your vehicle’s
Certificationflire label or consult your retailer
for
additional details.
Do not load your vehicle any heavier than the
GVWR, or either the maximum front or rear
GAWR. If you do, parts on your vehicle can
break, or it can change the
way your vehicle
handles. These could cause you to lose control.
Also, overloading can shorten the life of
your vehicle.
4-42
ProCarManuals.com

I NOTICE:
Pulling a trailer improperly can damage your
vehicle and result in costly repairs not covered by
your warranty.
To pull a trailer correctly, follow
the advice in this part, and see your Oldsmobile
retailer for important information about towing
a trailer with
your vehicle.
Every Bravada is ready for some trailer towing. If yours
was built with trailering options, as many are, it’s ready
for heavier trailers. But trailering is different than just
driving
your vehicle by itself. Trailering means changes
in handling, durability and fuel economy. Successful,
safe trailering takes correct equipment, and
it has to be
used properly.
That’s the reason for this part.
In it are many
time-tested, important trailering tips and safety rules.
Many of these are important for your safety and that of
your passengers.
So please read this section carefully
before you pull
a trailer.
If You Do Decide To Pull A Trailer
If you do, here are some important points:
0
0
0
0
0
There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig
will be legal, not only where you live but
also where you’ll be driving.
A good source for this
information can be state or provincial police.
Consider using a sway control
if your trailer will
weigh 2.000
Ibs. (900 kg) or less. You should always
use
a sway control if your trailer will weigh more
than 2,000 lbs. (900 kg). You can ask a hitch dealer
about sway controls.
Don’t tow a trailer at all during the first 500 miles
(800 kln) your new vehicle
is driven. Your engine,
axle or other parts could be damaged.
Then, during the first 500 miles (800
kin) that you
tow a trailer, don’t drive over SO mph (80 kdh) and
don‘t make starts at
full throttle. This helps your
engine and other parts of your vehicle wear
in at the
heavier loads.
You should use THIRD
(3) (or, as you need to, a
lower gear) when towing a trailer. Operating your
vehicle
in THIRD (3) when towing a trailer will
minimize heat buildup and extend the life of
your transmission.
4-45
ProCarManuals.com

Section 6 Service and Appearance Care
Here you will find information about the care of your Oldsmobile. This section begins with service and fuel
information, and then it shows how to check important fluid and lubricant levels. There is also technical information
about
your vehicle, and a part devoted to its appearance care.
6-
2
6- 3
6-4
6-5
6-6
6-9
6- 14
6-20
6- 24
6-25
6-29
6-29
6-30
6-34
6-37 Doing
Your Own Service Work
What Kind of Fuel to Use
Using Fuel
in Foreign Countries
Where to Put the Fuel and Filling
the Tank
Checking Things Under the Hood
Checking Your Engine Oil
Automatic Transmission Fluid
Engine Coolant
Where to Fill
the Windshield Washer Fluid
Important Brake Information
Information
on Your Vehicle’s Battery
Tips
on Vehicle Storage
Bulb Replacement Procedures
Windshield Wiper Blade Replacement How and When
to Check Tire Inflation 6-39
6-42
6-44
6-47
6-48
6-50
6-5
1
6-52
6-53
6-54
6-55 6-59
6-60
6-60
6-6
I
When it is Time to Buy New Tires
Wheel Alignment
Cleaning the Inside
of Your Oldsmobile
Care
of the Safety Belts
Cleaning the Outside
of Your Oldsmobile
How to Clean Aluminum Wheels
Underbody Maintenance
Recommended Appearance Care Materials
Your Vehicle Identification Number
(VIN)
The Electrical System
Fuses and Circuit Breakers
Replacement Bulb Types for Your Vehicle
Capacities and Specifications
Normal Replacement Parts
Air Conditioning Specifications
6-1
- -~ -
ProCarManuals.com

Adding Equipment to the Outside of
Your Oldsmobile
Things you might add to the outside of your vehicle can
affect the airflow around
it. This may cause wind noise
and affect windshield washer performance. Check with
your Oldsmobile retailer before adding equipment to the outside of your vehicle.
Fuel
Use regular unleaded gasoline rated at 87 octane or
higher. At a minimum, it should meet specifications
ASTM D4814 in the United States and CGSB 3.5-M93
in Canada. Improved gasoline specifications have been developed by the American Automobile Manufacturers
Association
(MA) for better vehicle performance
and engine protection. Gasolines meeting the AAMA
specification could provide improved driveability and
emission control system protection compared to
other gasolines.
Be sure the posted octane is at least
87. If the octane is
less than 87, you may get a heavy knocking noise when
you drive.
If it’s bad enough, it can damage your engine.
If you’re using fuel rated at 87 octane or higher and you
still hear heavy knocking, your engine needs service.
But don’t worry if you hear a little pinging noise when
you’re accelerating or driving up a hill. That’s normal,
and you don’t have to buy a higher octane fuel to get rid
of pinging. It’s the heavy, constant knock that means
you have a problem.
If your vehicle is certified to meet California Emission
Standards (indicated on the underhood tune-up label), it
is designed to operate on fuels that meet California
specifications. If such fuels are not available in states
adopting California emissions standards, your vehicle
will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp on
your instrument panel may
turn on and/or your vehicle
may fail a smog-check test. If this occurs, return to your
authorized Oldsmobile retailer for diagnosis to
determine the cause of failure. In the event it is
determined that the cause of the condition is the type of
fuels used, repairs may not be covered by your warranty.
ProCarManuals.com

Some gasolines that are not reformulated for low
emissions contain an octane-enhancing additive called
methylcyclopentadlenyl manganese tricarbonyl
(MMT);
ask your service station operator whether or not his fuel
contains MMT. General Motors does not recommend the
use of such gasolines.
If fuels containing MMT are used,
spark plug life may be reduced and your emission
control system performance may be affected. The
malfunction indicator lamp on your instrument panel
may turn on. If this occurs, return to your authorized
Oldsmobile retailer for service.
To provide cleaner air, all gasolines
in the United States
are now required to contain additives that will help
prevent deposits from forming in your engine and
fuel
system, allowing your emission control system to
function properly. Therefore, you should not have to add
anything to the fuel.
In addition, gasolines containing
oxygenates, such
as ethers and ethanol, and
reformulated gasolines may be available in your area
to
help clean the air. General Motors recommends that you
use these gasolines if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don’t use it. It can corrode
metal parts in your fuel system and also damage
plastic and rubber parts. That damage wouldn’t
be covered under your warranty.
~~
Fuels in Foreign Countries
If you plan on driving in another country outside the United
States or Canada, the proper fuel may be hard to find. Never
use leaded gasoline or any other
fuel not recommended in the
previous text
on fuel. Costly repairs caused by use of
improper fuel 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
6-4
ProCarManuals.com

Filling Your Tank
The fuel cap is behind a
hinged door
on the driver’s
side
of your vehicle.
’
I A CAUTION: I
Gasoline vapor is highly flammable. It burns
violently, and that can cause very bad injuries.
Don’t smoke
if you’re near gasoline or refueling
your vehicle. Keep sparks, flames and smoking
materials away from gasoline.
To take off the cap,
turn
it slowly to the left
(counterclockwise). The cap
has a spring in it; if you let
go of the cap too soon, it
will
spring back to the right.
I A CAUTION:
If you get gasoline on yourself and then
something ignites it, you could be badly burned.
Gasoline can spray out on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any “hiss” noise to stop. Then unscrew
the cap
all the way.
ProCarManuals.com

Be careful not to spill gasoline, Clean gasoline from
painted surfaces as soon
as possible. See “Cleaning the
Outside
of Your Oldsmobile” in the Index.
When you put
the cap back on, turn it to the right
(clockwise) until
you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine
if the fuel cap has been left off or improperly
installed.
This would allow fuel to evaporate into the
atmosphere. See “Malfunction Indicator Lamp” in
the Index.
I I
I NOTICE:
If you need a new cap, be sure to get the right
type. Your retailer can get one for you.
If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light and your fuel tank and emissions system may be
damaged. See “Malfunction Indicator Lamp’’ in
the Index.
Checking Things Under the Hood
To open the hood, first pull
the handle inside the vehicle
on the lower driver’s side
of
the instrument panel.
6-6
ProCarManuals.com