Important Notes:
* Always consult your owner's manual: The most accurate information will be found in your vehicle's owner's manual.
* Double-check your specific model: While the general capacity is 4.0 quarts, there might be slight variations depending on the exact year and configuration of your Sunfire GT.
* Oil change kit: Most oil change kits come with the appropriate amount of oil for your vehicle. However, it's always good to double-check the container for confirmation.
Remember: It's crucial to use the correct type and viscosity of oil recommended by your vehicle manufacturer.