Chevrolet 1995 Lumina Owner's Manual page 216

Then, without shutting off the engine, follow these
steps:
3.1L L82 (Code M) Engine 3.4L LQ1 (Code X) Engine
1. The transaxle fluid dipstick handle is the red loop
near the back of the engine. Pull out the dipstick and
wipe it with a clean rag or paper towel.
then pull it back out again.
2. Push it back in all the way, wait three seconds and
3.1L L82 (Code M) Engine 3.4L LQ1 (Code
X)
Engine
3.
4.
Check both sides of the dipstick, and read the lower
level. The fluid level must be in the cross-hatched
area.
If the fluid level is in the acceptable range, push the
dipstick back in all the way.