
One of the most common questions I hear in the automotive repair industry is, “How often should I (really) change my oil?”
Over the last few years this has become an especially big topic with newer cars and advances in synthetic oil technology. I have read news articles, blogs and social media threads that suggest ranges everywhere from 3,000 to 10,000 miles. Some say every 3,000 miles is excessive, some say they always change it every 3,000 miles – others say they just wait for their cars onboard computer system to tell them when the oil change is due.
In an article I was reading last week, the author said you can really go 10,000 miles on today’s oil…BUT he never specified what kind of oil or any outside factors.
So if I am a consumer with so many mixed messages from so-called “reliable” sources in the media…what is the truth? How often should I really change my oil?!
To find out, you must consider two important factors: the type of oil you use and where and how you drive.
Types of Oil
Perhaps you never knew that there are different kinds of oils that can be used in your vehicle. So, the first thing we need to do is clarify the difference between traditional oil, blended oil (used in the majority of vehicles in the U.S.) and synthetic oils. Think of them as good, better, best – in that order.
To begin with the best, synthetic oils are superior to standard oils and will not break down as frequently. They cost more and will last longer and hold up especially well in extreme temperatures. When you see articles suggesting that you can go longer in between oil changes, this is true WHEN you are using synthetic oils.
Traditional oil is produced by distillation and further refining of existing crude oil stock and is not used as often in vehicles as blended oil. A blended oil takes some of the added benefits of synthetic oils against breakdown and combines it with traditional oil while still remaining economically affordable. This makes for a better quality oil that better protects your engine, especially if you have older or higher mileage vehicles. Most service centers use blended oil for standard oil changes.
Driving Conditions
In many service manuals, the extended (5K or more) oil change frequencies are in “normal” or “ideal” operating conditions. If you drive in heavy stop and go traffic, make frequent short trips under ten miles, especially in cold weather conditions (like in Minnesota), or make frequent long distance trips in hot weather at highway speeds…you are driving your car in extreme conditions.
If you are a person who drives in extreme conditions (like a cold Minnesota winter) and used blended oil, you would do best to stick to the recommended 3,000 miles between oil changes or ask your service advisor at your local repair shop for his or her thoughts on your specific vehicle.
So what happens if you wait too long in between oil changes?
If you have ever looked at the oil from a car (that had a standard oil change using blended oil) that had five or six thousand miles since the last oil change, you’ll see the danger right away. Often times, especially on vehicles that are five or ten years old, the oil comes out extremely black in color, and sludge-like – or so low that the engine is starting to ping or knock.
Is it really worth it to push your car to the limit? Consider this scenario: imagine you weighed 200lbs and decided go bungee jumping. You were given the choice of a rope that can handle a person up to 250lbs or another rope that could handle someone up to 450lbs. Which would give you the most peace of mind? I prefer to have a bit of a safety net and use that same philosophy with changing my oil. If you really want to consistently push your car to 5,000 or 6,000 miles or beyond between oil changes, I urge you to keep reading.
In a perfect world where we could all drive brand new cars, afford premium synthetic oils and drive in “ideal” conditions, this higher frequency of 10,000 miles would be true.
However…….there are a few big flaws in changing your oil every 10,000 miles or just waiting for your car to notify you when it is due. What if your car burns oil, leaks, there is a fault in the onboard notification system, or it has one of the many “other variables” that come into play with car ownership?
Often times, the only time people bring their car into an automotive shop is for repairs, concerns, or oil changes. Bringing your car into a full service automotive center on a regular basis, or every 3,000 miles is like taking your car to the doctor’s office for a check up or physical. An honest, reputable shop will inspect your vehicle when in for fluid leaks and go over any concerns or potential problem areas before they arise. There is no coincidence that the people who bring their car in for oil change service every 3,000 (or 5,000 with synthetic) miles have cars that run better, longer and are more reliable.
Preventative maintenance will always save you the most money and get the most out of your investment. If you are a person who insists on waiting longer intervals between oil changes, I encourage you to at least have your car inspected in between oil change intervals. Most shops offer this service for a very reasonable rate and it might just save you from a costly breakdown or unexpected large repair bill. As the saying goes, it’s better to be safe than sorry – especially when it comes to your vehicle!
Feel free to give me a call, shoot me an email (chan@victoryautoservice.com) or visit me at our Chanhassen location. I, or any of our managers, would be happy to talk with you about the specific needs of your particular vehicle.
Drive safely!