Why is it so important to use the correct oil when performing an
oil change in your car or truck’s engine? Today’s vehicles have requirements for low emissions, high fuel mileage, and customers want high horsepower. To meet these requirements modern engines are much more complicated, with internal systems such as variable valve timing. There are actuators inside the engine that are operated by engine oil based on oil pressure. If the correct grade or viscosity of the oil is not used problems with how the engine
performs can arise. This could cause a check engine light to come on. We have plenty of examples of fixing a check engine light. Engine drivability problems can be solved by using the correct oil during an oil change. There have always been two different positions when it comes to this topic. Many believe that you should switch to high mileage when your vehicle reaches 75k miles. Another opinion is that you
should switch if your vehicle is getting older and your engine is showing signs of loosening. If you frequently notice oil leaks on your older vehicle, you should start using high mileage oil. Engine noises such as rattling can benefit from a denser high mileage oil as well. If you arent experiencing any of these issues there is no need to change your engine oil. Typically high mileage engine oils are not licensed and using them could affect your warranty High mileage oil is designed to care for older engines. The ingredients in high mileage oil care for the seals, have antioxidants, detergents, and wear and friction additives. High mileage oils contain viscosity modifiers that are durable and won’t diminish over time. This causes the oil to stay thicker for longer periods of time, helping protect your engine parts. Over the course of the life of a vehicle, everything begins to loosen. As the
engine ages, your gaskets, seals, and non-metal parts begin to wear. High mileage oils are designed with additives that increase flexibility and restore shape to these parts. This can help with oil leaks in the long run. High mileage oils are designed for engines that are beyond the warranty mileage. Some of the thicker oils, such as 10W-30 full synthetic and 5W-20 full synthetic can make your vehicle harder to start. This
is especially true in colder temperatures. They can also reduce the circulation around the engine and increase your overall oil pressure. This will result in more pressure trying to push the motor oil between seals and gaskets. What can happen if the correct oil isn’t usedIf the correct oil is not used the vehicle warranty could be affected. For these reasons, at G&G Auto Repair we always look up the manufacturer’s required oil specification for every vehicle when we change the oil, and we only use an oil that we verify meets that specification. We use oil from a variety of sources. Even popular brands of synthetic oil don’t meet the specifications of every manufacturer. Whether you have your oil changed here or at another repair facility, it’s important that the correct oil is used in your vehicle’s engine. By Tsukasa Azuma Last updated Jan 05, 2021 0 comments Major oil brands that produce high-mileage oil market their products having anti-aging and anti-wear properties for the engine of old cars. These oils are supposed to have additives that help engines that have run more than 75,000 miles to stay in good shape. These oils, mostly a blend of synthetic- and petroleum-based oils, cost a few dollars more per quart than traditional motor oils. Is high-mileage oil worth it? You will find several motor oil brands advertising different types of oil formulations, claiming to be the best solution for taking care of a car’s engine. Does high mileage oil work in improving fuel efficiency, helping with running a cleaner engine, and enhancing a vehicle’s overall performance? How High-Mileage Oils Help an Engine?A motor vehicle is a big machine and like all other machines, its components are supposed to wear out and deteriorate over time. Running all these mileages takes a toll on a car’s engine and some of its parts don’t work as they should be. Some areas that get affected the most are valve seals, piston rings, rod bearing connections, and crankshaft. All engine parts are likely to develop some slop and wastage. The engines in some old cars may have some ridge at the top of the piston. They may also have worn out cylinder walls. In a word, worn out seals, deteriorated connections, and sludge buildups are some of the common problems in high-mileage engines. These problems, along with bad driving habits, cause worn-out components, blowby of gases, and oil leaks.  The Useful Properties of High-Mileage OilHigh-mileage oils are specially designed to help engines that have over 75k to 100k miles on the odometer. They have additive packages that benefit an old engine by:
Remember that high-mileage oil is designed for older vehicles when the engine has started to decline and lose oil pressure. Using this on a new vehicle may invalidate the manufacturer’s warranty. Although, some oil brands claim that their high-mileage oil is suitable for both old and new vehicles. Some top-of-the-line high-mileage oils are synthetic blends. Synthetic oil is already high quality, and it brings added protection to the high-mileage formulation. Such blends maintain the same viscosity across various temperatures, which help the vehicle to produce the same performance across different weather conditions. Is High-Mileage Oil Worth It?Do I need high–mileage oil?—that you might be asking yourself after reading the above discussion. Does the oil deliver proper value for the money spent on it? Many automobile experts talk in favor of it. A vehicle running over 75,000 miles faces several issues, which a high-mileage oil can help address. It helps to run an old engine in optimum condition longer. Is high-mileage oil worth it? We’ve already pointed out how this oil helps an automobile engine. Now, let’s discuss those points further. SEE MORE
Removing engine sludgeNot changing the oil at the scheduled time leads to breakdown and thickening of the oil, resulting in tar-like dregs in the engine. Such buildups affect engine performance and quicken the wear of various parts. High-mileage oil solves these issues by removing the sludge. Sealing leaksSeals of various engine components can scrape away, causing leak formation and oil dripping. These oils have additives that protect those damaged seals from becoming worse. As a result, oil cannot leak through the holes caused by this problem. Such oil leakage creates unnecessary oil burn-off. For example, an engine burns more fuel when oil leaks through the oil control ring. The volatility of high-mileage oil reduces such burning in older vehicles and increases fuel efficiency. Reducing normal wear and tearVarious engine parts and seals wear out over time, and this rate is faster in older engines. High-mileage oil protects critical parts by preventing damage rate with wear protection. Is high-mileage oil worth it? Yes, it is. You may have already understood that maintaining an old car requires plenty of money. It’s definitely worth it if you can save that expense by spending a few extra dollars at each oil change. When Should You Switch to High-Mileage Oil?Is high-mileage oil worth it? You’ve already got your answer. But what’s the best time to switch to high-mileage oil? Experts have two different opinions about this issue. One group suggests changing the oil when the car hits 75,000 miles. The other group does not believe in mileage. They recommend using it whenever the engine shows some wear signs such as oil leakage, creating various types of noises, low fuel economy, and poor performance. The best way is to wait until the car’s warranty period is over. High-mileage oils are usually not API licensed, so using them is likely to void that warranty. You can always take the car to the dealer as long as there is a warranty. After that, use the oil whenever the engine leaks or produces rattling sounds even if it has not crossed the 75,000 miles threshold. The Bottom LineHigh-mileage oils have various properties that are good for older engines. They have detergents, friction additives, viscosity modifiers, properties for swelling seals, and many other ingredients that take care of engine parts and keep your vehicle running without trouble for a long time. If you compare high mileage oil vs regular oil, the first one is definitely better for old and used vehicles. It saves plenty of money in repair and maintenance expenses by keeping engine components in good health. Do high mileage oils make a difference?It can help reduce oil consumption, smoke, and emissions from older engines. High mileage oil also works to minimize leaks and oil seepage. While you could use high mileage oil in a younger car without harming it, the issues that high mileage oil addresses usually don't appear in vehicles with fewer than 75,000 miles.
Can high mileage oil cause problems?High-mileage motor oil doesn't hurt and it could prevent leaks from starting. Most vehicle manufacturers would say it's normal for an engine to consume some oil between oil changes.
Are High Mileage synthetic oils worth it?It may seem like overkill to use an oil that is specifically formulated for older engines, but it's worth it in the long run. The additives in high mileage oils offer a myriad of benefits that will keep your engines working efficiently and reliably for longer.
Will high mileage oil hurt a new car?Using a high-mileage oil in a new vehicle would be ill-advised, since no manufacturer recommends this type of oil for a new vehicle. Would it harm your engine? Most likely not, but it would be better to adhere to what is specified in the owner's manual, at least until the warranty has expired.
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Is high mileage motor oil worth it
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