oil additives OLDSMOBILE BRAVADA 1997 Owners Manual

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

Engine Oil Additives
Don’t add anything to your oil. Your Oldsrnobile retailer
is ready to advise
if you think something should
be added.
When to Change Engine Oil
If any one of these is true for you, use the short tripkity
maintenance schedule:
a
a
a
a
a
Most trips are less than 5 to 10 miles (8 to 16 km).
This
is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such
as frequent
driving
in stop-and-go traffic).
You operate your vehicle in dusty areas or
off-road frequently.
You frequently tow a trailer or use a carrier on top of
your vehicle.
The vehicle is used for delivery service, police, taxi
or other commercial application. Driving under these conditions causes
engine
oil to
break down sooner.
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
occurs first.
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and filter every
7,500 miles (1 2 500 km) or 12 months -- whichever
occurs first. Driving a vehicle with a
fully warmed
engine under highway conditions causes engine oil to
break down slower.
Remote Oil Filter
The access door for the remote oil filter is in the steering
linkage shield assembly located under the radiator
support. Twist the screw to unlock
or lock the door.
Make sure
if you open the door, it is securely closed
when
you are finished.
ProCarManuals.com

1 NOTICE:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix
will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50150 mix of clean
water and
DEX-COOL TM coolant.
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your retailer check your
cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-21
ProCarManuals.com

Electrical Equipment. Adding .................... 6-54
Electrical System
............................... 6-54
Engine
........................................ 6-8
Coolant Heater
............................... 2- 14
Coolant Level Check
.......................... 7-39
Coolant Temperature Gage
..................... 2-56
Exhaust
..................................... 2-22
Identification
................................ 6-53
OilLevelCheck
.............................. 7-39
Overheating
................................. 5-12
Running While Parked
......................... 2-23
Specifications
................................ 6-60
Starting
..................................... 2-13
Engineoil
..................................... 6-9
Additives
................................... 6-12
Kind to Use
................................. 6-10
Pressure Gage
................................ 2-59
Used
....................................... 6-13
Whentochange
.............................. 6-12
Exhaust. Engine
................................ 2-22
Express-Down Window
.......................... 2-24
Exterior Metal Parts. Protecting
.................... 6-49
Fabric cleaning
............................... 6-45
FillingYourTank
................................ 6-5
Filter.
Air ..................................... 6-13
Finish Care
.................................... 6-49 Finish
Damage
.................................
Flat Tire. Changing ............................. 5-21
Fluids and Lubricants
....................... 6-61. 7-45
Fog Lamp Switch
............................... 2-33
Foreign Countries. Fuel
........................... 6-4
Front Axle
....................................... 6-18
Reading Lamp Bulb Replacement
................ 6-33
Towing
..................................... 5-10
Turn Signal Lamp Bulb Replacement
............. 6-31
Fuel
.......................................... 6-3
Filling Your Tank
.............................. 6-5
Foreign Countries
.............................. 6-4
Gage
....................................... 2-61
Fuses and Circuit Breakers
....................... 6-55
Flashers.
Hazard Wdrning
......................... 5-2
Storage Area
................................. 2-39
Gages
Engine Coolant Temperature .................... 2-56
Engine Oil Pressure
........................... 2-59
Fuel
....................................... 2-61
Garage Door Opener
............................ 2-44
GasCap
....................................... 6-5
Gear Positions
................................. 2-15
GAWR ....................................... 4-42
ProCarManuals.com