The Mazda6 sedan is known for its long-lasting durability. It may reach 250,000 miles on the odometer when the vehicle is properly maintained, the factory-set maintenance schedule is followed, and oil changes are performed at regular intervals. If you average 15,000 miles of driving every year, you can expect your new Mazda6 to last between 13 and 17 years, depending on your driving habits and maintenance routine.