Oil changes are one of the most common services your vehicle needs, but how often should you really be doing them? For years, the rule of thumb was every 3,000 miles, but modern vehicles and improved oil technology have shifted that number significantly. Understanding when to change your oil depends on your driving habits, your vehicle’s age, and the type of oil you use.
Ignoring oil change intervals can lead to major engine problems down the road. On the other hand, changing your oil too often wastes time and money. Let’s take a closer look at how to strike the right balance for your car.
Why Oil Changes Are So Important
Motor oil lubricates your engine’s moving parts, helping them run smoothly while reducing heat and friction. It also carries away contaminants, carbon buildup, and metal particles produced by engine wear. Over time, oil breaks down and becomes less effective at performing these tasks.
Dirty or degraded oil leads to poor engine performance, decreased fuel economy, and even internal damage. Skipping oil changes can cause sludge to build up, restrict oil flow, and eventually lead to a seized engine. That’s why this simple maintenance task plays such a big role in your vehicle’s longevity.
Manufacturer Recommendations vs. Real-World Driving
Your vehicle’s owner’s manual is the first place to check for oil change guidelines. Most modern cars recommend oil changes every 5,000 to 7,500 miles, with some vehicles going as far as 10,000 miles or more when using full synthetic oil.
However, these estimates are based on ideal driving conditions. If you frequently drive in stop-and-go traffic, make short trips, tow trailers, or experience extreme temperatures, your engine may need more frequent oil changes.
In other words, what works for one driver may not apply to another. At our repair shop, we recommend evaluating how you use your vehicle and adjusting your oil change schedule accordingly.
The Difference Between Conventional and Synthetic Oil
The type of oil you use makes a big difference in how often it needs to be changed. Conventional oil, while still effective, typically requires replacement every 3,000 to 5,000 miles. Synthetic blends last longer and provide better protection at high and low temperatures. Full synthetic oil can extend oil change intervals to 7,500 or even 10,000 miles, depending on your vehicle and usage.
If your car is newer or uses a turbocharged engine, synthetic oil is the manufacturer’s default recommendation. It costs more up front, but the benefits to your engine and the longer intervals between changes make it a worthwhile investment for many drivers.
What Happens If You Wait Too Long
Delaying an oil change beyond the recommended interval can lead to more than just dirty oil. As oil degrades, it becomes thicker and less able to flow through the engine. This leads to higher operating temperatures, increased friction, and faster wear on components like piston rings, bearings, and valve guides.
Eventually, your engine will start making unusual noises, burn more fuel, or trigger a warning light. At a certain point, worn-out oil can cause internal damage that requires costly repairs or even full engine replacement.
The longer you wait, the higher the risk—and the more expensive the consequences.
Don’t Forget the Oil Filter
Changing the oil filter is just as important as changing the oil itself. The filter traps dirt and debris circulating through the system. Over time, it can clog and reduce oil pressure, limiting the flow of clean oil through the engine.
We always recommend replacing the oil filter with every oil change. It’s a small cost that plays a big role in keeping your engine clean and protected.
TL Motors – Professional Oil Change Service in Covina, CA
At TL Motors in Covina, we help drivers stay on top of their oil change schedule with the right oil for their vehicle, driving habits, and budget. Whether you drive a high-mileage commuter, a turbocharged import, or a family SUV, our technicians will make sure your engine stays protected.
Stop by or schedule an appointment today for expert service you can trust.