Pontiac 1998 Grand Am Owner's Manual page 247

c
3100 Engine
The engine oil dipstick handle is yellow. The dipstick on
the 2.4L engine is located at the rear of the engine. The
dipstick on the 3 100 engine is located on the front of the
engine, behind the fan.
Turn off the engine and give the oil a few minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.
Checking Engine Oil
6-14