If your car has accumulated over 75,000 miles, you may have started noticing small changes. Maybe you're topping off the oil more frequently between scheduled changes, or you've spotted a few drops on the driveway. These are signs that your engine is aging and would benefit from a different type of motor oil. High mileage formulas are specifically designed to address the wear and tear that develops in older engines, and understanding when to make the switch can extend your vehicle's life significantly.

What Makes High Mileage Motor Oil Different

Standard motor oil works well for newer engines, but as vehicles age, their internal components wear down. Piston rings become less effective at sealing, valve seals harden and crack, and gaskets that once held everything tight begin to leak. High mileage motor oils like Valvoline High Mileage with MaxLife Technology address these specific problems through specialized additives and seal conditioners.

The seal conditioners in high mileage formulas are designed to rejuvenate aging rubber seals and gaskets, helping them expand slightly and reseal properly. This can reduce or eliminate the leaks that become common in vehicles over 75,000 miles. Additionally, high mileage oils contain extra detergents to clean away the sludge and deposits that accumulate inside older engines, keeping internal components running more smoothly.

Understanding the 5W-20 Specification

The numbers on your motor oil bottle—in this case 5W-20—tell you about the oil's viscosity, or thickness, in different temperatures. The number before the W indicates how the oil flows in cold weather; a lower number means it flows more easily when your engine is cold and starting up. The number after the W represents how thick the oil is at normal operating temperature.

Your vehicle's owner's manual specifies which viscosity your engine needs. If your manual calls for 5W-20, that's what you should use, whether it's a standard or high mileage formulation. Using the wrong viscosity can affect fuel efficiency and engine protection, so checking your manual before purchasing is essential. You'll find the specifications in a section dedicated to maintenance, or you can search online using your vehicle's year, make and model.

Valvoline High Mileage with MaxLife Technology in Practice

Valvoline High Mileage with MaxLife Technology 5W-20 comes as a synthetic blend, which means it combines conventional and synthetic base oils. This approach provides better protection than conventional oil alone while costing less than full synthetic formulations. The brand has been manufacturing motor oil for over 150 years and formulates this product to meet or exceed API SP, API SN, and ILSAC GF-6A standards, which are industry requirements for engine protection.

The advanced friction-fighting additives in the formula help your engine operate more efficiently, which can translate to modest improvements in fuel economy. For vehicles experiencing higher consumption due to age, this matters. The extra protection against wear, deposits, corrosion and rust helps maintain engine cleanliness and performance even as your vehicle ages.

When to Switch and How Often to Change It

Once your vehicle crosses 75,000 miles, it's a good time to make the transition to high mileage motor oil if you haven't already. If you're currently using standard oil and experiencing leaks or consuming oil between changes, switching sooner could help. However, if your engine is running cleanly with no leaks or excess consumption, you can continue with standard oil longer if you prefer.

High mileage oil doesn't change how often you need to change your oil. Follow your vehicle manufacturer's recommended service interval, which is typically every 3,000 to 10,000 miles depending on your vehicle and driving conditions. Checking your oil level monthly helps you catch any developing issues early.

If you own multiple vehicles or need to keep a supply on hand, Valvoline High Mileage with MaxLife Technology 5W-20 synthetic blend comes in a pack of six quarts, giving you enough for several oil changes or to maintain proper levels across multiple cars. Just confirm that 5W-20 is the correct grade for each vehicle before using it.

The product in this guide: Valvoline High Mileage with MaxLife Technology 5W-20 Synthetic Blend Motor Oil 1 Quart (Pack of 6)