Is High-Mileage Oil Worth It?

adding oil to vehicleOnce your car passes the 75,000-mile mark, you might hear about high-mileage oil during your next service. But what does it really mean? It’s easy to feel overwhelmed when a mechanic suggests something new, especially if the benefits aren’t clearly explained. While it may seem like an extra cost, understanding what high-mileage oil is and when it's needed can help you make an informed decision.

What is High-Mileage Oil?

High-mileage oil is specifically designed for vehicles that have more than 75,000 miles on the odometer. These oils are formulated with special additives that help protect aging engine components. Unlike regular motor oil, they often contain a blend of synthetic and conventional oils, which gives them a thicker consistency. This helps maintain better seal integrity and reduce oil leaks over time.

As engines age, their internal parts can start to wear down, leading to issues like increased oil consumption or leaks. High-mileage oil is meant to address these problems by keeping seals and gaskets in better condition. It also includes ingredients like viscosity modifiers, detergents, and friction reducers to keep your engine running smoothly for longer.

Do Engines Really Need High-Mileage Oil?

Back in the 1990s, most engines lasted around 130,000 miles. Today, with better technology and maintenance, cars can easily go beyond 200,000 miles. However, even the best-engineered vehicles will eventually show signs of wear. Around the 100,000-mile mark, you might notice things like oil leaks, louder engine noises, or increased oil consumption.

If you're seeing any of these signs, switching to high-mileage oil could be beneficial. It helps protect worn-out seals and gaskets, reduces friction between moving parts, and keeps the engine cleaner by preventing sludge buildup. This can extend the life of your engine and save you money on future repairs.

The Benefits of High-Mileage Oil

There are several key advantages to using high-mileage oil, especially for older vehicles:

Reduces Oil Leaks

As your engine ages, seals and gaskets can dry out or crack, leading to oil leaks. High-mileage oil contains seal conditioners that help keep these parts supple and less likely to fail. This not only prevents oil from dripping onto the ground but also reduces the risk of oil entering the combustion chamber and burning.

Helps Keep Your Engine Clean

Over time, dirt, carbon deposits, and sludge can build up inside your engine, reducing efficiency and causing damage. High-mileage oil includes detergents and anti-corrosion agents that help break down these deposits, keeping your engine running cleaner and smoother for longer.

When High-Mileage Oil May Not Be Needed

While high-mileage oil has its benefits, it’s not always necessary. If your car is still running smoothly and doesn’t show signs of wear—like oil leaks or excessive oil consumption—conventional oil may still work just fine. Also, if you’ve been diligent with regular maintenance, there’s no need to switch unless your mechanic recommends it.

However, high-mileage oil isn’t a fix for poor maintenance habits. If you've neglected oil changes or driven under harsh conditions, this type of oil won't solve deeper mechanical issues. In such cases, it’s important to get a full inspection to identify and address the root cause of the problem.

Whether you need a simple oil change or more extensive repairs, DaSilva’s offers reliable, affordable service. Contact us today to schedule an appointment at our Naugatuck location and keep your vehicle running strong for years to come.

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