octane Oldsmobile Alero 2001 Owner's Manuals

For
a More
Detailed Look at
What's Under the Hood
See Section 6
Tire Pressure
See Section 6
Service Station Guide
Oil Viscosity
Engine Oil
See Section 6
Engine Oil Dipstick
2.4L L4 Engine
See Section 6
Cooling System
See Section 5
Secondary
Hood Release
See Section 6
Windshield Washer
Fluid
See Section 6
Spare Tire Pressure
See Section 5
Battery
See Section 6Engine Oil Dipstick
3400 V6 Engine
See Section 6
Fuel
Use unleaded only.
See Section 6
for octane ratings.

6-3
CAUTION:
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, the proper replacement parts
and tools before you attempt any vehicle
maintenance task.

Be sure to use the proper nuts, bolts and
other fasteners. ªEnglishº and ªmetricº
fasteners can be easily confused. If you use
the wrong fasteners, parts can later break
or fall off. You could be hurt.
Adding Equipment to the Outside of
Your Vehicle
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 dealer before adding equipment to the outside of
your vehicle.
Fuel
Use regular unleaded gasoline rated at 87 octane or higher.
It is recommended that the gasoline meet specifications
which were developed by the American Automobile
Manufacturers Association (AAMA) and endorsed by the
Canadian Motor Vehicle Manufacturers Association for
better vehicle performance and engine protection. Gasolines
meeting the AAMA specification could provide improved
driveability and emission control system performance
compared to other gasolines.
In Canada, look for the
ªAuto Makers' Choiceº
label on the fuel pump.
Canada Only

6-4
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
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 emission
control 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. See ªMalfunction Indicator Lampº in the Index.
If this occurs, return to your authorized Oldsmobile dealer
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 gasolines that are not reformulated for low
emissions may contain an octane
-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or not the 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 dealer
for service.