octane OLDSMOBILE AURORA 1996 Owners Manual

Your vehicle has an air bag system. Before attempting to
do your own service work, see “Servicing Your Air
Bag-Equipped Aurora” in the Index.
You should keep a record with all parts receipts and list
the mileage and the date
of any service work you
perform. See “Maintenance Record” in
the Index.
You can be injured and your vehicle could be
damaged if
you try to do service work on a
vehicle without knowing enough about
it.
Be sure you have sufficient knowledge,
experience, and the proper replacement
parts and tools before you attempt any
vehicle maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused. If you use
the wrong fasteners, parts can later break
or fall off.
You could be hurt.
Fuel
Use premium unleaded gasoline rated at 91 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
(AAMA) 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 for premium
is at least 91. If
the octane
is less than 91, you may get a heavy knocking
noise when you drive. (In an emergency, you may be
.
able to use a lower octane -- as low as 87 -- if heavy
knocking does not occur.) If you’re using
91 or higher
octane unleaded gasoline and you still hear heavy
knocking, your engine needs service.
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
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may fail a smog-check test. If this occurs, return to your
authorized Aurora 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.
Some Canadian gasolines contain an octane enhancing
additive called methlycyclopentadienyl manganese
tricarbonyl (MMT).
If such fuels are used, 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 Aurora retailer for service.
To provide cleaner air, all gasolines 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
Lf 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
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