1994 PONTIAC FIREBIRD fuel

I I
Here you will find information
about the care of your Pontiac
.
This part 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 section devoted
to its
appearance care
.
Part b
Service 8t Appearance Care
Service .........................................................
Fuel ...........................................................
Checking Things under the Hood ....................................
HoodRelease ..................................................
184
185
188
188
Engineoil
.................................................... 191
Aircleaner
.................................................... 195
Automatic Transmission Fluid
..................................... 198
Manual Transmission Fluid
....................................... 200
Hydraulic Clutch
............................................... 201
RearAxle
..................................................... 201
Enginecoolant
................................................. 201
Power Steering fluid
............................................ 204
Windshield Washer Fluid
......................................... 205
Brake Master Cylinder
........................................... 206
Bulb Replacement
................................................ 209
Battery
....................................................... 208
LoadingYourVehicle
............................................. 213
Tires
........................................................... 215
Appearance Care
................................................. 221
Appearance Care and Maintenance Materials
.......................... 227
Vehicle Identification Number (VIN)
................................. 228
Service Parts Identification Label
.................................... 228
Add-on Electrical Equipment
....................................... 228
Fuses and Circuit Breakers
......................................... 228
ReplacementBulbs
............................................... 232
Capacities and Specifications
........................................ 233
183 ...
ProCarManuals.com

H Fuel
The 8th digit of your Vehicle
Identification Number (VIN) shows
the code letter for your engine.
You will
find the VIN at the top left of your
instrument panel. (See “Vehicle
Identification Number” in the Index.)
3.4L L32 (Code S)
Use regular unleaded gasoline rated at 87 octane or higher. It should meet
specifications ASTM D4814 in the
U.S.
and CGSB 3.5-92 in Canada. These fuels
should have the proper additives,
so you
should not have
to add anything to: the
fuel.
In the U.S. and Canada, it’s easy to be sure you get the right kind of giisoline
(unleaded). You’ll see “UNLEADED”
right on the pump. And only unleaded nozzles will fit into your vehicle’s filler
neck.
’ Be sure the posted octane is at least 87.
If the octane is less than 87, you may get
a heavy knochng noise when
you drive.
If it’s bad enough, it can damage your
1 engine. If
you’re using fuel rated at 87 octane or
higher and you still hear heavy knoclung,
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.
5.7L LT1 (Code P)
Use premium unleaded gasoline rated at
91 octane or higher. You may use middle
grade or regular unleaded gasolines, but
your vehicle may not accelerate as well.
The gasoline you use should meet
specifications
ASTM D4814 in the U.S.
and
CGSB 3.5-92 in Canada. These fuels
should have the proper additives,
so you
should not have to add anything to the
fuel.
In the
U.S. and Canada, it’s easy to be
sure you get the right lund of gasoline
(unleaded). You’ll see “UNLEADED”
right on the pump. And only unleaded nozzles will fit into your vehicle’s filler
neck. 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 you’re using fuel rated at
91 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.
All Engines
What about gasoline with blending
materials that contain oxygen
(oxygenates), such as MTBE or alcohol?
MTBE is “methyl tertiary-butyl ether.”
Fuel that is no more than
15% MTBB is
fine for your vehicle.
Ethanol is ethyl or grain alcohol.
Properly-blended fuel that is no more
than 10% ethanol is fine for your vehicle.
Methanol is methyl or wood alcohol.
185 ...
ProCarManuals.com

Service and Appearance Care
NOTICE:
Fuel that is more than 5% methanol
is bad for your vehicle. 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. And
even at
5% or less, there must be
“cosolvents” and corrosion prevent-
ers in this fuel to help avoid these
problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit control
additives will help prevent deposits from
forming in your engine and fuel system.
That helps keep your engine in tune and
your emission control system working
properly. It’s good for your vehicle, and
you’ll be doing your part for cleaner air.
Many gasalines are now blended with
oxygenates. General Motors recommend:
that you use gasolines with these blendin,
materials, such as MTBE and ethanol. BJ
doing
so, you can help clean the air,
especially
in those parts of the country
that have high carbon monoxide levels. n
addition, some gasoline suppliers are
low producing reformulated gasolines.
rhese gasolines are specially designed to
.educe vehicle emissions. General Motors
-ecommends that you use reformulated
;asoline. By doing
so, you can help clean
:he air, especially in those parts of the
:ountry that have high ozone levels.
You should ask your service station
3perators if their gasolines contain deposit
:ontrol additives and oxygenates, and
if
:hey have been reformulated to reduce
vehicle emissions.
Fuels in Foreign Countries
[f you plan on driving in another country
outside the
U.S. or Canada, unleaded fuel
may be hard to find. Do not use leaded
gasoline, If you use even one tankful,
your emission controls won’t work well
or at all. With continuous use, spark plugs
can get fouled, the exhaust system can
corrode, and your engine oil can
deteriorate quickly. Your vehicle’s oxygen
sensor will be damaged. All of that means
costly repairs that wouldn’t be covered by
your warranty.
To check on fuel availability, ask an auto
:lub, or contact a major oil company that
Joes business in the country where you’ll
,e driving.
You can also write us at the following
iddress for advice. Just tell
us where
you’re going and give your Vehicle
Identification Number (VIN).
General Motors Overseas Distribution
North American Export Sales (NAES) 1908 Colonel Sam Drive
Oshawa, Ontario
LlH 8P7
Canada Corporation
. . .I86
ProCarManuals.com

I
Filling Your Tank
The cap is behind a hinged door on the
left side of your vehicle. To
take
off the cap, turn it slowly to the
left (counterclockwise).
Be careful not to spill gasoline. Clean
gasoline from painted surfaces as soon as
possible. See “Cleaning the Outside of
Your Pontiac” in
the Index.
When
you put the cap back on, turn it to
the right until you hear at least three
:licks.
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 and your fuel tank
and emissions system might be dam-
aged.
187 ... ProCarManuals.com

OIL
Engine Oii
If the “LOW OIL” light on the instrumenl
panel comes on, it means you need to
check your engine oil level right away.
For more information, see
“Low Oil
Light”
in the Index. You should check
your engine oil level regularly; this is an
added reminder.
3.4L L32 (Code S)
It’s a good idea to check your engine oil
every time you get fuel. In order to get an
accurate reading, the oil must be warm
and the vehicle must be on level ground.
5.7L LTl (Code P)
Turn off the engine and give the oil a few
ninutes to drain back into the oil pan. If
’ou don’t, the oil dipstick might not show
he actual level.
191 ...
ProCarManuals.com

Service and Appearance Care
Recommended SAE Viscosity
Grade Engine
Oils
For best fuel economy and cold starting,
select the
lowest SAE viscosity grade oil
for the expected temperature range.
HOT
WEATHER
J
SAE 5W-30 PREFERRED
COLD
WEATHER
IF NllTHER SAE SW-30 NOR SAE 1OW-30 GRADE OILS ARE AVAILABLE, SAE 30 GRADE
MAY BE USED AT TEMPERATURES ABOVE
40 DEGREES F (4 DEGREES C).
ANY OTHER GRADE OIL NOT RECOMMENDED. Dd NO? USE SAE 1OW-40, SAE 2OW-50 OR
As shown in the chart, SAE 5W-30
is best for your vehicle. However,
you can use
SAE 1OW-30 if it’s
going to be
0°F (-18°C) or above.
These numbers on an oii container
show its viscosity,
or thickness. Do
not use other viscosity oils such as
SAE 1OW-40 or SAE 20W-50.
If you cannot find oils with
the new
“starburst” symbol on the front of the
container, you should look for and use
oils containing the following three
things:
0
0
0
SH or SG
“SH” or “SG” must be on the oil
container, eithet by itself or
combined
with other quality
designations, such as “SWCD,”
“SH, SG, CD,” “SGKD,” etc.
These letters show American
Petroleum Institute
(API) levels of
quality.
SAE 5W-30
Energy Conserving
I1
Oils with these words on the
container will help you save fuel. These three things are usually
included in a doughnut shaped logo
(symbol) on most containers. If you
cannot find oils with the “starburst”
symbol, you should look for oils
with the doughnut shaped symbol,
containing the three things noted
above.
NOTICE:
If you use oils that do not have
either the “starburst” symbol or an
API SH or SG designation, you can
cause engine damage not covered
by your warranty.
GM Goodwrench@ oil
(in Canada,
GM Engine Oil) meets all the
requirements for your vehicle.
Engine Oil Additives:
Don’t add anything to your oil. Your
Pontiac dealer is ready to advise
if you
think something should be added.
. . .194
ProCarManuals.com

1. Turn counterclockwise and pull out
I. Pull out the bulb.
i. Reverse the steps with a new bulb.
the socket and
the bulb.
r ~~
~~ ~~~
TIRE-LOADING INFORMATION
FRT. CRT.
RR. TOTAL LBS KG 3 3 2 MAX. LOADING @ GVWR SAME AS VEHICLE 8 1199 544
OCCUPANTS VEHICLE CAP. WT.
TIRE SIZE
In 0
0
INFORMATION l-
< d
I Loading Your Vehicle
wo labels on your vehicle show how
luch weight it may properly carry. The
ire-Loading Information label found on
le driver’s door tells you the proper size,
Jeed rating and recommended inflation
ressures for the tires on your vehicle. It
so gives you important information
)out
the number of people that can be in
3ur vehicle and the total weight that you
in carry. This weight is called the
ehicle Capacity Weight and includes the
eight of all occupants, cargo, and all
onfactory-installed options.
MFD BY GENERAL MOTORS CORP.
DATE GVWR GAWRFRT GAWRRR
01/91 5713LB 2503LB
Y) In
0 2
c d
he other label is the Certification label,
Iund on the rear edge of the driver’s
oor. It tells you the
gross weight
apacity of your vehicle, called the
WWR (Gross Vehicle Weight Rating).
he GVWR includes the weight of the
shicle, all occupants, fuel and cargo.
’ever exceed the GVWR for your
zhicle, or the Gross Axle Weight Rating
3AWR) for either the front or rear axle.
.nd, if you do have a heavy load, you
lould spread it out. Don’t carry more
Ian
100 pounds (45 kg) in your rear area
213. ProCarManuals.com

Service and Appearance Care
[dation - Tire Pressure
The Tire-Loading Information label
which
is on the driver’s door shows the
correct inflation pressures for your
tires, when they’re cold. “Cold” means
your vehicle has been sitting for at
least three hours or driven
no more
than
a mile.
If your vehicle is equipped with
P245/50ZR16 tires and you’ll be
driving at speeds higher than 100 mph
(160
km/h) where it is legal, raise the
“cold” inflation pressure of each tire
to
35 psi (240 Pa). When you end this
very high speed driving, reduce the
“cold” inflation pressures to those
listed
on the Tire Loading Information
label.
NOTICE:
Don’t let anyone tell you that underinflation overinflation is all right. It’s not.
If your tires don’t have enough air (underinflation) you
can get:
Too much flexing
0 Too much heat
a Tire overloading
0 Bad wear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation), you can get:
0 Unusual wear
Bad handling
0 Rough ride
0 Needless damage from road hazards.
.’. . 216
ProCarManuals.com