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Can You Mix Synthetic Oil With Regular Oil?

Motor oil is one of the most important fluids in your car. It keeps all the moving parts lubricated, and helps to protect the engine against wear and tear. There are two main types of motor oil: synthetic and crude oil.

Many people are wondering if it’s possible to mix these two types of oil together. In this article, we will explore the pros and cons of mixing synthetic and regular oil, and provide some tips on how to do it safely.

How Is Regular (Crude) Oil Made?

Crude oil is extracted from the ground and then refined into different types of motor oil. There are two main refining processes: thermal cracking and catalytic cracking. Thermal cracking breaks down large hydrocarbons into smaller molecules, while catalytic cracking uses a catalyst to convert heavy hydrocarbons into lighter ones.

There are three main types of crude oil: light, medium, and heavy. Light crude oil has a low density and high octane rating, making it perfect for producing gasoline. Medium crude oil has a medium-density and octane rating, while heavy crude oil has a high density and low octane rating.

How Is Synthetic Oil Made?

Synthetic oil is a type of lubricant that is made from chemicals rather than petroleum. It is specifically engineered to have properties that are comparable, but usually superior, to those of standard motor oil.

When you see an advertisement or read something about synthetic oils being “better” for your car than traditional mineral-based oils, it’s important to know technical details related to what makes a particular synthetic oil a better choice for your vehicle and driving conditions.

The remainder of this article will explain how synthetic oils are manufactured according to chemical structure and viscosity.

Chemical Structure Of Synthetic Oils

Can You Mix Synthetic Oil With Regular Oil?

As stated earlier, the difference between synthetic and mineral-based gasoline engine oils lies in the ingredients used during manufacturing as defined by the base oils. Both synthetic oil and traditional oil are composed of long hydrocarbon chains with small molecules.

Synthetic oil has hydrocarbon chains that are man-made, while mineral-based oils have naturally occurred long chains of hydrogen and carbon atoms bonded together in a straight line.

What Is The Difference Between Synthetic And Conventional Oil?

Although synthetic and conventional oils both serve the same purpose (to lubricate the moving parts of an engine), that’s essentially where their similarities end. A key difference is that conventional oil comes from natural, crude oil found in wells, while synthetic oil is man-made.

Another difference between the two types of oil is that synthetic oil remains fluid even at high temperatures, whereas conventional oil begins to thicken at temperatures as low as 40 degrees Fahrenheit. That means that conventional oil can potentially cause your vehicle’s engine to run hotter than normal during cold weather.

This could be especially damaging for vehicles with an older engine design that doesn’t have a built-in system to regulate engine temperature. The damage caused by running a cold engine in sub-zero weather could be irreversible, so it’s important to have your vehicle’s engine serviced with synthetic oil if you live in colder areas.

Synthetic oil has another advantage over conventional oil — because it doesn’t thicken as the temperature drops, your car will start up more easily during the winter.

Can I Switch From Conventional Oil To Synthetic Oil?

Most experts agree that switching over to synthetic oil is best done at the end of the last recommended interval (usually 7500 miles or one year), rather than making an immediate switch from conventional oil to synthetic.

This is because there are two reasons why there may be risks involved in changing oils too quickly: natural residue left behind by the old oil and problems caused by not letting your engine reach normal operating temperature.

Many car mechanics have heard horror stories from customers whose engines were ruined after switching to synthetic oil too quickly or failing to allow their cars sufficient time to warm up before driving them.

What Is The Better For My Car: Synthetic Or Regular Oil?

Can You Mix Synthetic Oil With Regular Oil?

A lot of people wonder if the extra cost of synthetic oil is really worth it. After all, regular oil has been fine for decades (depending on who you ask), so why change it up now? Well, here are some points to think about if you’re trying to decide which type of oil to use in your car.

Oils Have Come A Long Way

Oil technology has come a long way in the past 20 years or so, and modern motor oils work wonders in cars that used to burn through them like crazy.

Car engines today are built with tighter tolerances than they were before, which means less chance of oil seeping into places where it shouldn’t be—as well as losing less oil over time.

Today’s Synthetic Oil Is Better And Smarter

Back when oil companies started making synthetic motor oils, they were not only better at how they protected your engine, but also smarter. Today’s synthetics are engineered to work better longer between changes, improving the overall performance of the car.

This is possible because synthetics adhere less over time than regular oil. Many people find that their engines run smoother and with more power after switching to synthetic oil.

Many High-Tech Cars Recommend Synthetic Oils Only

As car technology continues to evolve so do their requirements for motor oil. Some high-tech cars require synthetic oils only in order to maintain peak performance under all conditions.

Since many newer vehicles fall into this category it becomes pretty obvious that using regular oil in these cars is not a good idea.

Not All Synthetic Oils Are Created Equal

Just like with regular oil, not all synthetics are created equal. Cheaper synthetics generally do not maintain viscosity as well or offer the same levels of engine protection.

You get what you pay for when it comes to synthetic oil so if you want the best for your car, you need to go with a reputable manufacturer and preferably one which has been around a while.

Should I Switch to Synthetic Oil?

The question of whether to switch your oil from conventional to synthetic is a common one for car owners. It’s also an argument that rages on in certain automotive circles. The answer? You should do some research and decide what’s best for you, your vehicle, and the environment. Using synthetic oil may be part of a cost-saving measure, but it isn’t necessarily more beneficial.

Can You Mix Synthetic Oil With Regular Oil?

Here are pros and cons to consider when switching to synthetic oil:

Pros

  • Better protection against engine wear
  • Thicker viscosity means better resistance against heat, thus protecting the engine longer
  • Cleans away dirt particles more effectively than conventional oil

Cons

  • Can be expensive (though prices have come down)
  • Synthetic oils have lower “energy efficiency” than conventional oils because the molecular size of the synthetic oil molecules is larger
  • Lower volatility, so it can’t vaporize as easily and thus lose its lubricating effect

The “energy efficiency” of a synthetic vs. a conventional oil also means that your engine generally has to use more energy to get the same amount of actual work done because more energy is used up by acceleration and compression.

You may not notice this because you’re just driving around town, but if you take your car on long trips (such as those found on many road trips), you might see an increase in gas mileage even though it’s using more fuel–the fuel economy gauge doesn’t read as high as it should be for those types of trips.

As you can see, there are pros and cons to using synthetic oil. If you’re trying to decide if it’s time to switch, consider your lifestyle and the vehicle that you drive.

Again, doing some research on your specific make and model before switching is a good idea too. It is generally advised to use Synthetic oil, as most modern car manufacturers require it for your vehicle to run smoothly.

I Can’t Afford To Switch To Synthetic Oil

If you can’t afford to switch over all at once, it’s best done in stages: for example, using half regular oil and half synthetic until you’re able to make the full transition.

Keep in mind that there are other factors that must be considered when determining how frequently your vehicle requires an oil change — things like how much city versus highway driving you do, what type of climate you live in, and how old your vehicle is will have a significant impact on the life expectancy of an oil change.

For example, if you drive a lot in a city setting during the summer months, you may need to change your oil as often as every 3-5 thousand miles.

The key thing to remember is that there are no hard and fast rules when it comes to changing your car’s oil, but using synthetic oil can help extend the interval between changes by as much as 30 per cent.

Can You Mix Synthetic Oil With Regular Oil?

Is It OK To Top Up The Oil In My Vehicle Between Service Intervals?

Yes, you can top-up oil between service intervals. In some cases, it may even be necessary to do so. However, you must always follow the vehicle manufacturer’s recommendations for what type of oil and how much oil should be added.

These recommendations vary from one vehicle model to another. There are several ways that a person might damage their engine by adding too much or too little oil between scheduled maintenance appointments:

  • Too Little Oil – If the engine is low on oil at shutdown, there will not be enough oil flow to protect critical engine parts, which can lead to metal-to-metal contact and subsequent catastrophic engine failure.
  • Too Much Oil – There are critical clearances (varying from one vehicle model to another) in the engine that allow for proper oil flow. If these clearances are filled up with too much oil, the excess oil can create an excessive amount of drag on the engine, resulting in decreased fuel economy and increased wear on moving parts.

Additionally, if the engine is sitting idle or running at low speeds with too much oil present, this can cause small pieces of dirt to stick to the inside of the cylinder wall as well as other surfaces where oil coats.

This debris can then mix with larger pieces of metal shavings that come off bearings, gears, and other critical components residing inside your engine. These particles will become “gummed” together over time and form large sludge masses that can clog oil passages, filters, and strainers.

This sludge will eventually cause the engine to run rough and fail. To ensure you’re getting the right amount of oil in your engine, periodically check your dipstick during operation. Keep a container handy to catch any excess oil that drains out during this process.

Do Diesel And Gasoline Engines Use The Same Oil?

No, diesel and gasoline engines use different types of oil. Diesel engine oils are typically heavier than gasoline engine oils.

This is because the higher compression ratios in diesel engines place more stress on the lubricating film between the moving parts, which can cause them to wear faster than in a gasoline engine.

Additionally, diesel fuel contains more sulfur and other contaminants that can also accelerate wear on engine components. For this reason, it’s important to use diesel-specific oil in your truck or car’s diesel engine to ensure optimal performance and protection.

Some people mistakenly think that they can save money by using a cheaper grade of oil in their diesel vehicle — but this could lead to premature failure of critical engine components and expensive repairs down the road.

Always consult your vehicle owner’s manual to find the recommended grade of oil for your diesel engine and never try to cut corners by using a cheaper type of oil.

FAQs

Can You Mix Synthetic Oil With Regular Oil?

How Often Should You Change Your Oil?

This depends on a variety of factors, including the type of oil you’re using, how often you drive and what kind of driving conditions you’re exposed to. However, synthetic oil can help extend the interval between changes by as much as 30%.

It is generally recommended that you change your oil every 3.000 miles or once per year (what comes first), but most modern cars today have longer intervals.

What’s The Average Cost Of An Oil Change?

This varies depending on the type of oil, where you live, and what type of car you have. However, a basic synthetic oil change will typically cost between $50 and $75.

What Kind of Oil Should You Choose?

This depends on the type of engine in your car. Consult your vehicle owner’s manual to find out what type of oil is recommended for your specific model.

Can You Mix Synthetic Oil With Regular Oil?

Yes, you can mix synthetic oil with regular oil. However, it’s important to follow the vehicle manufacturer’s recommendations for how much should be added. These recommendations vary from one vehicle model to another.

Can You Add More Oil If The Level Is Low?

Yes, you can add more oil if the level is low; however, you must always follow the vehicle manufacturer’s recommendations for how much should be added. These recommendations vary from one vehicle model to another.

What Happens During An Oil Change?

Can You Mix Synthetic Oil With Regular Oil?

An oil change typically involves draining the old oil from your car’s engine and replacing it with new oil. The process may also include a filter change, depending on the type of filter installed in your vehicle.

I Drove My Car for 5000 Miles Without an Oil Change, Will I Die?

No, you will not die; however, this is not recommended and can lead to premature failure of critical engine components. Always consult your vehicle owner’s manual to find the recommended interval between changes and follow these recommendations closely.

Why Should I Do A Full Oil Change Instead Of Just Topping It Off?

Topping off your oil is not the same as doing a full oil change. When you top off your oil, you are only adding new oil to the existing oil in your engine. This does not remove any of the old, dirty oil and may actually lead to buildup and gunkier engines over time.

A full oil change involves draining all of the old, dirty oil from your engine and replacing it with fresh, clean oil. This helps keep your engine running smoothly and prevents build-up caused by using old, dirty oil.

Can I use a cheaper type of motor oil in my car?

It is never recommended to use a cheaper type of motor or diesel oil in your car. Using a cheaper grade of oil may lead to premature failure of critical engine components and expensive repairs down the road. Always consult your vehicle owner’s manual to find the recommended grade of oil for your car or truck.

Conclusion

While there are no hard and fast rules when it comes to changing your car’s oil, using synthetic oil can help extend the interval between changes by as much as 30 per cent. It is also important to follow the vehicle manufacturer’s recommendations for what type of oil and how much should be added.

If you drive a lot in a city setting during the summer months, you may need to change your oil every 3000-5000 miles. However, using synthetic oil can help extend the interval between changes by up to 30%.

Yes, you can top-up oil between service intervals; however, you must always follow the vehicle manufacturer’s recommendations for what type of oil and how much should be added. These recommendations vary from one vehicle model to another.

It’s important to use diesel-specific oil in your truck or car’s diesel engine to ensure optimal performance and protection. Using a cheaper grade of oil may lead to premature failure of critical engine components and expensive repairs down the road.

Always consult your vehicle owner’s manual to find the recommended grade of oil for your diesel engine.