What is a high mileage for diesel car?

High mileage for a diesel car can vary depending on the make, model, and maintenance of the vehicle. In general, a diesel car can be considered high mileage after reaching 200,000 miles (322,000 kilometers), but some diesel cars can reach much higher mileages, even exceeding 500,000 miles (805,000 kilometers). Regular maintenance, proper driving habits, and using high-quality fuel can contribute to the longevity and high mileage of a diesel car. Diesel engines are known for their durability and fuel efficiency, making them suitable for high-mileage applications.