If you have the 3800 Supercharged engine (VIN Code
l), use premium unleaded gasoline rated at 91 octane
or higher. With the
3800 Supercharged engine, in an
emergency, you may be able to use a lower octane -- as
low as
87 -- if heavy knocking does not occur. If you
are using
91 or higher octane unleaded gasoline and
you hear heavy knocking, your engine needs service.
At a minimum, the gasoline you use 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 (at
least
89 for middle grade and 87 for regular). 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 your vehicle is certified to meet California Emission
Standards (indicated
on the underhood emission control
label), it is designed to operate on fwels 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 Pontiac 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 contain
an octane-enhancing additive called
methylcyclopentadienyl 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
Pontiac dealer for service.
6-4
To remove 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.
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.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See “Cleaning the
Outside
of Your Vehicle” 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.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer 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.
6-7
NOTICE:
Don’t let anyone tell you that underinflation or
overinflation is
all right. It’s not. If your tires
don’t have enough air (underinflation),
you can
get the following:
0 Too much flexing
0 Too much heat
Tire overloading
Bad wear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation),
you can get the following:
Unusual wear
Bad handling
0 Rough ride
0 Needless damage from road hazards. When
to Check
Check your tires once a month or more.
Don’t forget your compact spare tire. It should
be at
60 psi (420 Wa).
How to Check
Use a good quality pocket-type gage to check tire
pressure.
You can’t tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they’re underinflated.
Be sure to put the valve caps back on the valve
stems.
They help prevent leaks by keeping out dirt
and moisture.
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