Chevrolet 1995 S-10 Pickup Owner's Manual page 232

To check transmissionfluid cold:
A cold check is made after the vehicle has
been sitting for eight hours or more with the engine off and is used only as a
reference. Let the engine run at idle for five minutes if outside temperatures
are
50°F
(
10°C) or more. If it's colder than
50°F
(
lO"C), you may have to
idle the engine longer. Should the fluid level be low during a cold check,
you must perform a hot check before adding fluid. This will give you a more
accurate reading of the fluid level.
To check the fluid hot or cold
Park your vehicle on a level place. Keep the engine running.
With the parking brake applied, place the shift lever in PARK (P).
0
With your foot on the brake pedal, move the shift lever through each
gear range, pausing for about three seconds in each range. Then,
position the shift lever in PARK (P).
Let the engine run at idle for three minutes or more.
Then, without shutting off the engine, follow these steps:
1. Flip the handle
up and then 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.
6- 15