The recommended frequency for changing your car's oil depends on various factors including your vehicle type, driving conditions, and the type of oil used. Here is a detailed summary:

General Recommendations

• Most modern cars can go 10,000 to 15,000 kilometers (6,500 to 10,000 miles) or about 12 months between oil changes under normal driving conditions

• A common rule of thumb is to change oil every 5,000 to 7,500 miles , especially for older cars or those without advanced oil-life monitoring systems

• Some manufacturers recommend changing oil every 6 months or 5,000 to 7,500 miles , whichever comes first

Severe Driving Conditions

If you frequently drive under severe conditions, you should change your oil more often. Severe conditions include:

• Short trips less than 8 km (5 miles) in normal temperature or less than 16 km (10 miles) in freezing temperature
• Extensive idling or low-speed driving
• Driving on rough, dusty, or salted roads
• Heavy traffic, towing, or driving in mountainous areas
• Frequent stop-and-go driving

Under these conditions, oil change intervals may reduce to:

• Every 7,500 km (5,000 miles) or 6 months for some regions
• Every 5,000 km (3,000 miles) or 6 months for harsher environments like Middle East, India, or heavy dust conditions

Type of Oil

• Synthetic oils generally last longer and allow for longer intervals between changes, sometimes up to 15,000 miles or more

• Conventional oils typically require more frequent changes, around every 3,000 to 5,000 miles

Additional Tips

• Always follow the oil change interval recommended in your vehicle’s owner manual.
• Use the oil grade and type specified by your manufacturer for optimal engine protection

• Check your oil level monthly and top up as needed.
• If you do not drive much, change oil at least once a year to prevent oil degradation

• Oil filters may need to be changed at different intervals than oil; check your manual

In summary, for most drivers under normal conditions, changing oil every 10,000 to 15,000 km (6,500 to 10,000 miles) or annually is adequate. For severe conditions or older vehicles, change oil every 5,000 to 7,500 miles or every 6 months. Always consult your owner's manual for the most accurate guidance. References: