Engine BUICK REGAL 1997 Manual Online

When you open the hood of the 3800 (Code 1) Supercharged Engine, you’ll see:
A. Windshield Washer Fluid Reservoir
B. Radiator Fill Cap
C. Remote Positive Battery Terminal
D. Power Steering Fluid Reservoir
E. Engine Oil Dipstick
E Engine Oil Fill Cap
G. Automatic Transaxle Fluid Dipstick
H. Brake Fluid Reservoir
I. Engine Coolant Recovery Tank
J. Air Cleaner
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Before closing the hood, be sure all the filler caps are
on properly. Then just pull the hood down and close
it firmly.
3800 Supercharged (Code 1) Engine
(If Equipped)
Your Buick may have a 3800 Supercharged engine.
The supercharger is a device which is designed to
pump more air into the engine than it would normally
use. This air is mixed with fuel, which creates increased
engine power. Since the supercharger is a pump and is
driven from an engine accessory drive belt, increased
pressure is available at all driving conditions.
The powertrain control module
(PCM), works with
a vacuum control to regulate the increased pressure
required during specific driving conditions. When
this
increased pressure or boost is not desired, such as during
idling and light throttle cruising, the excess air that the
supercharger
is pumping is routed through a bypass.
All of these controls working together provide high
performance character and fuel efficiency in the
3800 Supercharged L67 engine.
Engine
I --
LOW
OIL
If the LOW OIL light on
the instrument panel comes on, it means you need to
check your engine oil level right away. For more
information, see
“Low Oil
Level Light” in the Index.
You should check your
engine oil level regularly;
this is an added reminder.
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.
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The engine oil dipstick handle is the yellow loop near
the front of
the engine.
Turn off the engine and give the oil a few minutes to
drain back into the oil pan. If you don’t, the oil dipstick
might not show the actual level.
Checking Engine Qil
Pull out the dipstiik and clean it with a paper tuwel or
cloth, then push it back iri all the way. Remove it again,
keeping the tip down, ;and check the level.
When to Add Oil
If the oil is at or below the ADD mark, then you’ll need
to add at least one quart of oil. But you must use the
right kind. This part explains what kind of oil to use. For
crankcase capacity, see “Capacities and Specifications”
in
the Index.
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NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched area that shows the proper
operating range, your engine could
be damaged.
The engine oil fill cap is located toward the front of the
engine near the yellow-looped engine oil dipstick handle. Be
sure to fill
it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back
in when you’re through.
What Kind of Oil to Use
Oils recommended for your vehicle can be identified
by looking for the “Starburst” symbol. This symbol
indicates that the oil has been certified by the American
Petroleum Institute (API).
Do not use any oil which
does not carry this Starburst symbol.
If you change your own oil,
be sure you use oil that has
the Starburst symbol on the
front of the oil container.
If
you have your oil changed
for you, be sure the oil put
into your engine is
American Petroleum
Tnstitute certified for
gasoline engines.
You should also use the proper viscosity oil for your
vehicle,
as shown in the following chart:
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RECOMMENDED SAE VlSCOSlTI GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAL VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
/- ‘ OF ‘C‘
+ 100- - t 38
+80- - +27
+60--+16
+40--+4
+20- --7
0---18
COLD
SAL sw-30
LOOK
FOR MIS
SYMBOL
GEl OW-30 PREFERRED abovo 0°F (-18°C)
WEATHER
DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 1OW-30 is best for your
vehicle. However,
you can use SAE 5W-30 if it’s going
to be colder than 60 OF ( 14 O C) before your next oil
change. When it’s very cold, you should use
SAE
5W-30. These numbers on an oil container show its
viscosity, or thickness.
Do not use other viscosity oils,
such
as SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure to use the
recommended oil can result in engine damage not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
-20°F (-29”C), consider using either an SAE 5W-30
synthetic oil or an
SAE OW-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
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Engine Oil Additives
Don’t add anything to your oil. Your Buick dealer 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
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).
Most trips are through dusty areas.
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. (See “Change Oil Soon” Light
in the Index.)
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and filter every
7,500 miles (12 500 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.
(See “Change Oil Soon” Light
in the Index.)
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be unhealthy for your skin and could
even cause cancer? Don’t let used oil stay on your skin
for very long. Clean your skin and nails with soap and
water, or
a good hand cleaner. Wash or properly throw
away clothing or rags containing used engine oil. (See
the manufacturer’s warnings about the use and disposal
of oil products.)
Used oil can be
a real threat to the environment. If you
change your own oil, be sure to drain all free-flowing oil
from the filter before disposal. Don’t ever dispose of oil
by putting
it in the trash, pouring it on the ground, into
sewers, or into streams or bodies of water. Instead,
recycle it by taking it to
a place that collects used oil. If
you have
a problem properly disposing of your used oil,
ask your dealer, a service station or
a local recycling
center for help.
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Air Cleaner
To check or replace the air
filter, loosen the wing nut
on the
air duct and lift up
on the
two clips located
on the top of the filter
cover, Disconnect the duct
and reposition it while
removing the side cover.
r
Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not only cleans the air, it stops flame if the engine
backfires.
If it isn’t there, and the engine backfires,
you could be burned. Don’t drive with it
off, and
be careful working on the engine with the air
cleaner
off.
Pull out the filter. Be sure to install the air filter and NOTICE:
install the cover tightly when you are finished.
Refer to the Maintenance Schedule to determine when to
If the air cleaner is off, a backfire can cause a
replace the air filter. damaging engine fire. And, dirt can easily get
I
See “Scheduled Maintenance Services” in the Index.
I
into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
I
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Supercharger Oil
Unless you are technically qualified and have the proper
tools, you should let your dealer or a qualified service
center perform this maintenance.
When to Check
Check oil level every 30,000 miles (50 000 km) or every
36 months, whichever occurs first.
What Kind of Oil to Use
See “Recommended Fluids and Lubricants’’ in the Index
and use only the recommended oil.
How to Check and Add Oil
Check oil only when the engine is cold. Allow the
engine to cool two to three hours after running.
If you remove the supercharger oil fill plug while
the engine is hot, pressure may cause
hot oil to
blow out
of the oil fill hole. You may be burned.
Do not remove the plug until the engine cools.
1.
2.
3.
3.
Clean the area around the oil fill plug before
removing it.
Remove
the oil fill plug using a 3/16 inch Allen
wrench.
The oil level is correct when
it just reaches the
bottom
of the threads of the inspection hole.
Replace the oil plug with the O-ring
in place.
Torque to
88 lb-in (10 N-m).
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Automatic Transaxle Fluid
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter
every 50,000 miles
(83
000 km) if the vehicle is mainly driven under one
or more of these conditions:
In heavy city traffic where the outside temperature
regularly reaches
90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter
do not require changing.
See “Scheduled Maintenance Services” in the Index.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your Buick dealership
Service Department.
If
you do it yourself, be sure to follow all the
instructions here,
or you could get a false reading on
the dipstick.
I I
I NOTICE:
Too much or too little fluid can damage your
transaxle.
Too much can mean that some of the
fluid could come out and fall on hot engine parts
or exhaust system parts, starting a fire. Be sure to
get an accurate reading if you check your
transaxle fluid.
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Wait at least 30 minutes before checking the transaxle
fluid level
if you have been driving:
When outside temperatures are above 90°F (32°C).
At high speed for quite a while.
In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is
180°F to 200°F
(82°C to 93°C).
Get the vehicle warmed up by driving about 15 miles
(24 km) when outside temperatures are above 50°F
(10°C). If it's colder than 50°F (lO"C), you may have
to drive longer.
Checking the Fluid Level
0 Park your vehicle on a level place. Keep the
0 With the parking brake applied, place the shift lever
0 With your foot on the brake pedal, move the shift
engine running.
in PARK
(P).
lever through each gear range, pausing for about
three seconds in each range. Then, position the shift
lever in
PARK (P).
0 Let the engine run at idle for three to five minutes.
Then, without shutting off the engine, follow these steps:
The automatic transaxle fluid dipstick is the red
loop
located toward the rear of the engine.
1. Pull out the dipstick and wipe it with a clean rag or
paper towel.
2. Push it back in all the way, wait three seconds and
then
pull it back out: again.
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