As many drivers face the reality of owning high-mileage vehicles, mechanics emphasize the importance of proper engine care to extend the life of these cars. With the average age of cars on the road now exceeding 12 years, car owners need to adopt essential maintenance practices to avoid costly repairs and ensure reliable performance. Here are six crucial engine-care rules that experienced mechanics recommend for high-mileage vehicles.

1. Regular Oil Changes

One of the most fundamental aspects of engine care is routine oil changes. Mechanics suggest changing the oil every 3,000 to 5,000 miles for older vehicles, especially those with over 100,000 miles. For instance, a 2006 Toyota Camry may require more frequent oil changes to maintain optimal engine performance and prevent sludge buildup, which can lead to severe engine damage.

2. Monitor Coolant Levels

Maintaining proper coolant levels is critical for preventing overheating, a common issue in high-mileage cars. Mechanics recommend checking coolant levels at least once a month, especially in older models like the 2005 Honda Accord. Overheating can cause significant engine damage and result in costly repairs, underscoring the importance of this simple maintenance task.

3. Replace Air Filters

Air filters play a vital role in the engine’s performance, particularly in high-mileage vehicles. Dirty air filters can restrict airflow, leading to reduced fuel efficiency and increased engine strain. Mechanics advise replacing the air filter every 15,000 to 30,000 miles, depending on driving conditions. For example, a 2010 Ford Escape driven in dusty environments may require more frequent changes than one used primarily on highways.

4. Check Belts and Hoses

Belts and hoses are essential components that can wear out over time, especially in high-mileage cars. Cracked or frayed belts can lead to engine failure, while deteriorating hoses can cause coolant leaks. Mechanics recommend inspecting these parts every 30,000 miles and replacing them as necessary. For instance, a 2008 Chevrolet Silverado may need a belt replacement sooner if it has been used for towing or heavy loads.

5. Use High-Quality Fuel

The type of fuel used can significantly impact engine performance, particularly in older models. Mechanics advise using high-quality fuel with the appropriate octane rating for your vehicle. For example, a 2009 Subaru Outback may benefit from premium gasoline to prevent knocking and maintain engine health. While high-quality fuel may be slightly more expensive, the long-term benefits can outweigh the initial cost.

6. Keep an Eye on Engine Warning Lights

Engine warning lights are designed to alert drivers to potential issues, and ignoring them can lead to serious problems. Mechanics stress the importance of addressing any warning lights immediately, as they can signal everything from minor issues like low oil pressure to more severe problems such as engine failure. For instance, if the check engine light comes on in a 2015 Nissan Altima, a diagnostic scan can help identify the problem before it escalates.

Conclusion: Take Action Now

Proper engine care is crucial for maintaining the performance and longevity of high-mileage vehicles. By following these six rules, car owners can avoid costly repairs and ensure their vehicles remain reliable. As the average age of cars on the road continues to rise, understanding and implementing these maintenance tips is more important than ever. If you own a high-mileage car, take action today to safeguard your investment and keep your vehicle running smoothly.