The oil filter should generally be changed every time you change your oil. Most manufacturers recommend changing both oil and oil filter every 5,000 to 10,000 kilometers (about 3,000 to 6,000 miles) or every six months, whichever comes first

. This is because the oil filter traps dirt and contaminants, and a clogged filter can allow unfiltered oil to circulate, potentially damaging the engine

. Some sources note that while it is possible to change the oil filter every other oil change, this depends on driving conditions and how hard the vehicle is driven. Frequent short trips, dusty or wet conditions, towing, or harsh driving may require more frequent oil and filter changes

. If you use synthetic oil, which lasts longer and stays cleaner, you might extend oil and filter change intervals to 7,500 to 15,000 miles, but still typically change the filter with every oil change for best engine protection

. In summary:

• Change oil filter every oil change for optimal engine health and peace of mind

• Typical intervals: every 5,000 to 10,000 km (3,000 to 6,000 miles) or every 6 months, whichever comes first

• Adjust frequency based on driving conditions, vehicle age, and oil type (synthetic vs. conventional)

Following your vehicle manufacturer’s maintenance schedule is the best way to know the exact interval recommended for your car