Once your car hits the 75,000-mile mark, you might be recommended high-mileage oil during your next service. But it's not always clear what makes this type of oil different or why it might be necessary. While it may seem like an extra-cost option, understanding its purpose can help you make a more informed decision about your vehicle’s maintenance.
What is High-Mileage Oil?
High-mileage oil is specifically designed for vehicles that have surpassed 75,000 miles. It contains special additives aimed at reducing engine wear and improving performance in older engines. These oils often blend synthetic and conventional base oils to create a thicker consistency, which helps maintain better seal integrity and reduce leaks over time.
As your engine ages, seals and gaskets can dry out, shrink, or crack, leading to oil leaks. High-mileage oil helps slow down this process by keeping these components more supple and less prone to damage. It also includes ingredients that improve lubrication, reduce friction, and prevent sludge buildup, all of which contribute to smoother engine operation.
Do Engines Need High-Mileage Oil?
Car engines used to last around 130,000 miles, but modern vehicles are built to go much further—often double that distance with proper care. However, even the best-engineered cars will show signs of aging as they approach the 100,000-mile mark. Common issues include increased oil consumption, worn-out seals, and reduced compression due to internal component wear.
If you notice oil leaks under your car, unusual noises from the engine, or a drop in performance, it could be a sign that your engine is starting to age. At this point, switching to high-mileage oil may help protect your engine and extend its life. It can also help maintain better oil pressure and reduce the risk of major mechanical failures.
The Benefits of High-Mileage Oil
Using high-mileage oil offers several advantages, especially for older vehicles:
Reduces Leaks
Older engines are more prone to oil leaks due to worn seals and gaskets. High-mileage oil contains seal conditioners that help keep these components flexible, reducing the chances of cracks or drying out. This means fewer oil drips and less oil being burned in the combustion chamber.
Improves Engine Cleanliness
Over time, carbon deposits and sludge can build up inside the engine, reducing efficiency and causing long-term damage. High-mileage oil includes detergents and anti-corrosion agents that help break down these deposits, keeping the engine cleaner and running smoother.
When Not to Use High-Mileage Oil
While high-mileage oil has its benefits, it’s not always the right choice. If your engine is still running smoothly, without noticeable leaks or excessive oil consumption, you might not need it just yet. Conventional oil can work just fine if you’re maintaining your vehicle properly.
Also, keep in mind that high-mileage oil isn’t a fix for poor maintenance habits. If you’ve been skipping oil changes or driving in harsh conditions, switching to high-mileage oil won’t solve the underlying problems. In such cases, a full inspection and proper repairs are more important than just changing the oil.
Whether you need a simple oil change or more extensive service, DaSilva’s Auto Repair is here to help. Our team provides reliable, affordable auto care in Naugatuck. Call us today to schedule your appointment and keep your vehicle running smoothly for years to come.
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