Automatic Transmission Fluid - Buick 1994 Roadmaster Owner's Manual

Automatic Transmission Fluid
When to Check and Change
A good time to check your automatic transmission fluid
level is when the engine oil is changed. Refer to the
Maintenance Schedule to determine when to change
your fluid. 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 a 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
transmission. Too much can mean that some of
the fluid could come out and fall on hot engine
parts or exhaust system, starting a fire. Be sure
to get an accurate reading
if
you check your
transmission fluid.
Wait at least 30 minutes before checking the
transmission 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.
0
In heavy traffic
--
especially in hot weather.
0
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).
To check transmission fluid hot: Get the vehicle warmed
up by driving about 15 miles (24
k m )
when outside
temperatures are above 50°F (10°C). If it's colder than
50 O F
(
10
"
C), drive the vehicle in "D'
.(
3rd Gear) until
the engine temperature gage moves and then remains
steady for ten minutes. Then follow the hot check
procedures.
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