Checking Engine Oil - Pontiac 1999 Grand Prix Owner's Manual

The engine oil dipstick handle is the yellow loop near
the front of the engine.
3100 Engine
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil dipstick
might not show the actual level.
6-14
3800 or 3800
Supercharged Engine

Checking Engine Oil

3100 Engine
Pull out the dipstick and
clean it with a paper towel
or cloth, then push it back in
all the way. Remove it
again, keeping the tip down,
and check the level.
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