1999 BUICK REGAL engine oil

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6-21
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 90F (32C) 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, change the fluid and filter at
100,000 miles (166 000 km).
See ªScheduled Maintenance Servicesº in the Index.
How to Check
Because this operation can be a little difficult, you
may choose to have this done at the 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
transaxle fluid.
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6-26
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean, drinkable water and
one
-half DEX-COOL coolant which won't damage
aluminum parts. If you use this coolant mixture, you
don't need to add anything else.
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
your engine could get too hot but you wouldn't
get the overheat warning. Your engine could
catch fire and you or others could be burned. Use
a 50/50 mixture of clean, drinkable water and
DEX
-COOL coolant.
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6-33
What to Add
When you do need brake fluid, use only DOT
-3 brake
fluid. Use new brake fluid from a sealed container only.
Refer to ªRecommended Fluids and Lubricantsº in the
Maintenance Schedule.
Always clean the brake fluid reservoir cap and the area
around the cap before removing it. This will help keep
dirt from entering the reservoir.
CAUTION:
With the wrong kind of fluid in your brake
system, your brakes may not work well, or they
may not even work at all. This could cause a
crash. Always use the proper brake fluid.
NOTICE:

Using the wrong fluid can badly damage
brake system parts. For example, just a few
drops of mineral
-based oil, such as engine
oil, in your brake system can damage brake
system parts so badly that they'll have to be
replaced. Don't let someone put in the
wrong kind of fluid.

If you spill brake fluid on your vehicle's
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on your vehicle. If you do, wash it off
immediately. See ªAppearance Careº in
the Index.
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6-71
Replacement Bulbs
Exterior Lamps Bulb Number
Back
-Up 1156. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stop 3155. . . . . . . . . . . . . . . .
Front Parking/Turn Signal 4175 NAK. . . . . . . . . . . . .
Headlamp, High Beam 9005. . . . . . . . . . . . . . . . . . . .
Headlamp, Low Beam 9006. . . . . . . . . . . . . . . . . . . .
Stop/Tail/Turn Signal 3057. . . . . . . . . . . . . . . . . . . . .
Tail (Applique) 194. . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Lamps BulbNumber
Dome Lamp 9425542. . . . . . . . . . . . . . . . . . . . . . . . .
*For service information on these bulbs, contact your
dealer service department.
Capacities and Specifications
4T65E:
Automatic Transaxle
Pan Removal and Replacement 7.4 quarts (7.0 L). .
After Complete Overhaul 10.0 quarts (9.5 L). . . . .
* When draining/replacing converter, more fluid will
be needed.
Cooling System Including Reservoir
3800 (Code K) V6 12.3 quarts (11.6 L). . . . . . . . . . .
3800 Supercharged (Code 1) V6 12.3 quarts (11.6 L)
Refrigerant (R
-134a), Air Conditioning*1.88 lbs.
(0.85 kg)
*See ªAir Conditioning Refrigerantsº later in this
section.
Engine Crankcase
Oil and Filter Change 4.5 quarts (4.3 L). . . . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Fuel Tank17.5 gallons (66.2 L) . . . . . . . . . . . . . . . . .
*Note: All capacities are approximate. When adding, be
sure to fill to the approximate level, as recommended in
this manual. See ªRecommended Fluids and Lubricantsº
in the Index.
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6-73
Normal Maintenance
Replacement Parts
Engine/Air Cleaner FilterAC Type A1208C . . . . . .
Passenger Compartment Air Filter10406026 . . . .
Battery
3800 (Code K) V6 AC Type 690 CCA. . . . . . . . . . .
3800 Supercharged
(Code 1) V6 AC Type 770 CCA. . . . . . . . . . . . . . .
Engine Oil Filter
All Engines AC Type PF47. . . . . . . . . . . . . . . . . . .
Radiator Cap
All Engines AC Type RC27. . . . . . . . . . . . . . . . . . .
RKE BatteriesType CR2032 (2) or equivalent . . . . .
Spark Plugs
3800 (Code K) V6 AC Type 41
-921 . . . . . . . . . . . . .
Gap: 0.060 inches (1.52 mm)
3800 Supercharged
(Code 1) V6 AC Type 41
-921 or NGK Type . . . . .
PTR4B
-15 Gap: 0.060 inches (1.52 mm). . . . . . . . . .
Wiper Blade
Type Hook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length 22 inches (56 cm). . . . . . . . . . . . . . . . . . . . . .
Vehicle Dimensions
Wheelbase 109.0 inches (276.9 cm). . . . . . . . . . . . . .
Tread (Front) 62.0 inches (157.6 cm). . . . . . . . . . . . .
Tread (Rear) 61.3 inches (155.6 cm). . . . . . . . . . . . . .
Overall Length 196.2 inches (498.4 cm). . . . . . . . . . .
Overall Width 72.7 inches (184.5 cm). . . . . . . . . . . . .
Overall Height 56.6 inches (143.8 cm). . . . . . . . . . . .
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Scheduled Maintenance
7-5
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes

The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.* Your vehicle has an Engine Oil Life Monitor. This
monitor will show you when to change the engine oil
and filter
-- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come on
before 3,000 miles (5 000 km). Never drive your vehicle
more than 7,500 miles (12 500 km) or 12 months
without an oil and filter change.
The system won't detect dust in the oil. So if you drive
in a dusty area, be sure to change your oil and filter
every 3,000 miles (5 000 km) or sooner if the CHANGE
OIL SOON light comes on. Remember to reset the Oil
Life Monitor whenever the oil is changed. For more
information, see ªChange Oil Soon Lightº in the Index.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
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Scheduled Maintenance
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7-6
7,500 Miles (12 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
15,000 Miles (25 000 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote
.)
Replace passenger compartment air filter.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
22,500 Miles (37 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
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Scheduled Maintenance
7-7
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
30,000 Miles (50 000 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Replace passenger compartment air filter.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
For supercharged engines only: Check the supercharger oil level and add oil as
needed (or every 36 months, whichever occurs first). See ªRecommended
Fluids and Lubricantsº in this section.
An Emission Control Service. (See footnote
.)ACTUAL
SERVICED BY:MILEAGE
DATE
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