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3800 Series I1 (Code K) Engine (L36)
When you open the hood on the 3800 (L36) engine, here’s what you will see (3800 Supercharged (L67) engine similar):
“14 ,....
A. Battcry
D. Engine Oil Fill Cap G. Windshield Washer
B
. Radiator Pressure Cap
C. Engine Oil Dipstick E.
Automatic Transaxle
Fluid Dipstick
F. Brake Master Cylinder Fluid Reservoir
H. Engine Coolant Recovery
Tank
I. Air Cleaner
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Your Park Avenue Ultra has a 3800 Supercharged
engine. Buick chose supercharging rather than
turbocharging because Buick emphasizes smooth,
refined power.
The supercharger
is a device which is designed to pump
more air into the engine than it would normally use.
This air mixed with fuel 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
V6 Supercharged Buick engine.
The power steering pump and reservoir are mounted on
the rear (driver’s side) of the engine block. See
“Maintenance Schedule” in the Index for when you
should check the fluid.
Engine Oil
3 \
c
.
If you have the Driver Information Center, an ENGINE
OIL LOW-CHECK LEVEL message will appear when
the engine oil is approximately
1 quart (IL) low. If the
message is displayed, check the dipstick level and add
oil as needed.
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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.
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 Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
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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,
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.
Add engine oil at the engine oil fill cap next to the
oil dipstick.
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
Institute 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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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:
0 In heavy city traffic where the outside temperature
regularly reaches
90°F (32°C) or higher.
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
0 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.
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
1 transaxle fluid.
Wait at least 30 minutes before checking the transaxle
fluid level if you have been driving:
0 When outside temperatures are above 90°F (32°C).
0 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
(10OC).
If it’s colder than 50°F (lO”C), you may have
to drive longer.
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Service Station Checkpoints
REMOTE
BATTERY
TERMINAL P5-5
TIRES
ENGINE OIL
A/
DIPSTICK
P6-13
\;
. ..
1
RELEASE TAB
FUEL P6-7
DOOR
RECOVERY TANK P6-6
P6-26
I
WINDSHIELD
WASHER FLUID
P6-29
REMOTE FUEL
DOOR AND TRUNK RELEASE
P2-14 AND
6-7
For detailed information, refer to the page number listed, or see the Index in the back of the owner’s manual.
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