Pontiac 1998 Firebird Owner's Manual page 276

5.7L V8 Engine Transmission Dipstick
The Transmission fluid handle is the red loop near the
back 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.
5 . 7 L
V8 Engine llransmission Dipstick
3800 V6
Engine Transmission
Dipstick
6-23