Chevrolet 2003 Monte Carlo Owner's Manual page 251

Checking Engine Oil
It's a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
3400 (Code E)
V6 Engine
3800 (Code K) Engine
The engine oil dipstick handle is the yellow loop located
near the front of the engine. See Engine Compartment
Overview on page 5-12 for more information on location.
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.
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.
3400 (Code E)
3800 (Code K) V6
Engine
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