Can I Mix Synthetic and Regular Oil?: Know Today!
You have two different oil types; one is synthetic oil, and the second is regular oil. They both are excellent from different perspectives. But the difficulty is mixing those oils. It’s not like people willingly mix those oil; they don’t have a choice. You might need to add regular oil when you have already installed synthetic engine oil.
Therefore, you might ask, “Can I mix synthetic and regular oil?” Your answer will be favorable if you know your motor. We will go in-depth with this query and try to understand all the factors you need to consider before mixing those two different motor oils.
Difference Between Synthetic Oil Vs. Regular Oil
You will find some fundamental differences between synthetic oil vs. regular oil. Let’s have a look at the core differences. They will give help you to decide if you can mix them safely.
- Synthetic oil is made with artificial ingredients, including liquid oil, chemicals, and other things. In contrast, regular oil is composed entirely of pure petroleum oil. You will not find any chemicals there.
- Synthetic oil will ensure the best quality for your engine. It will give you a smooth engine performance, but the regular oil comes with a regular quality. Therefore, you will not get the best engine performance.
- Synthetic oil has different viscosity levels. You can choose the perfect oil viscosity if you use synthetic engine oil. But regular oi doesn’t give you that flexibility to choose a specific viscosity for your car engine.

What Will Happen If I Mix Them?
If you mix synthetic oil with regular oil, nothing will happen at all. One thing you will notice is the reduced engine performance. Your synthetic chemicals will not react with regular oil components. Instead, the petroleum liquid of regular oil will help those chemicals dilute quickly.
Besides, the overall quality will be decreased since your regular oil will fail to ensure the best quality motor oil. Apart from the low quality, nothing will happen after mixing or adding synthetic oil to regular oil. Doing that will not damage the engine; you will only decrease the engine performance.
Can I Mix Synthetic Oil and Regular Oil?
You can mix synthetic oil and regular oil; although they are not precisely the same, they do not have any core differences. The main reason is their compatible particles. These oils have compatible ingredients that will mix properly and won’t damage the overall quality. Moreover, adding regular oil with synthetic oil will not create any clog or hamper the engine performance.
Whatever your engine model is, you can safely pour these two different oils together. Both have similar ingredients to work and mix nicely with each other. Also, the engine performance will remain the same, although you find a little deviation in performance or smoothness. You must consider the leggings because of using a low-quality regular oil.
Synthetic oil is a high-quality artificial liquid that comes with different chemicals. But the chemicals will not react when you add regular oil. Instead, they will dilute in the liquid. You will only get a low-quality engine compared to synthetic oil.
Are They Compatible?
Both synthetic oil and regular oil are compatible since they have similar components. They both work as the best lubricant. You can interchange or replace one with the other because they are compatible and can be mixed easily.

Is the Mixture Safe for Motor?
The mixture of synthetic and regular oil is safe for motors. You can mix regular oil with a car engine with synthetic oil. It will become an excellent mixture that will keep your engine good.
Will Regular Oil Damage Your Engine?
Regular oil will not damage your engine. Instead, it will increase lubrication and enhance the power. If you already use synthetic oil, you can also use regular oil or mix them in the same tank since the regular oil won’t damage your engine.
Closing Words
You should consider your engine requirements when you ask Can I mix synthetic and regular oil. In most cases, both oils will become a good mixture and won’t hamper the engine performance. Also, synthetic oil components will dilute regular oil ideally. Therefore, you can mix them without damaging your engine.