On the back cover of my owner's manual it states the following:
SAE 5 W 30 for 3.3 L engine
SAE 10 W 30 for 3.5 L engine
5w30
5w30
5w30
5w30
5w30
5w30
Directly in front and above the oil filter
oil pressure sensor
For a 3.2L engine use a good quality 10W30 motor oil.
10w3010w30
Left front corner of the engine, in front of the motor mount.
The vehicle identification number on a 2000 Dodge Intrepid motor is found etched into the block at the oil sump plate. This oil sump plate sits at a 45 degree angle to the block.