2003 Chevrolet Cavalier Owner's Manual - Page 231

Engine Oil If the oil pressure light appears on the instrument cluster, it means you need to check your engine oil level right away. 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. Check the oil here. The dipstick's handle will be a yellow ring. See Engine Compartment Overview on page 5-12 for more information. For more information, see Oil Pressure Light on page 3-33. YOUshould check your engine oil level regularly; this is an added reminder. 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. 5-14