* 2.4L four-cylinder: This engine typically calls for 5W-30 oil. Consult your owner's manual for the exact specifications, as Chrysler may have specified a certain type of oil (synthetic blend, synthetic, or conventional).
* 2.0L four-cylinder (less common): This engine might also use 5W-30, but again, check your owner's manual for the exact recommendation.
Always refer to your owner's manual for the definitive answer on the correct oil type, viscosity, and quantity for your specific 2001 Chrysler PT Cruiser. The manual will also specify the recommended oil certifications (like API service classifications). Using the wrong oil can damage your engine.