2005 Pontiac Sunfire Owner's Manual - Page 224

When to Change Engine Oil If any one of these are true for you, use the short trip/city maintenance schedule: • Most trips are less than 5 miles (8 km). This is particularly important when outside temperatures are below freezing. Driving under these conditions causes engine oil to break down sooner. If any one of these is true for your vehicle, then you need to change your oil and filter every 3,000 miles (5 000 km) or 3 months - whichever occurs first. If none of them is true, use the long trip/highway maintenance schedule. Change the oil and filter every 7,500 miles (12 500 km) or 12 months - whichever occurs first. Driving a vehicle with a fully warmed engine under highway conditions will cause engine oil to break down slower. Your vehicle has a unique oil filter element. When installing the filter cap do not exceed 18 lb ft (25 Y). Inspect the condition of the O-ring and replace if damaged. See your dealer for additional information. • Most trips include extensive idling, such as frequent driving in stop-and-go traffic. • You frequently tow a trailer or use a carrier on top of your vehicle. • The vehicle is used for delivery service, police, taxi, or other commercial application. 5-18