Updated at: 14-03-2022 - By: micdot

Many times, motorists find themselves in the predicament of having to choose between two different types of motor oil. Is it safe and suggested to do this action? Let us investigate this further. Is it possible to combine several brands of motor oil? It’s possible, but that doesn’t mean you should. It’s possible that mixing two different types of motor oil won’t do any damage to your car, but it’s better to be cautious than sorry.

This is a popular question because an oil change is an essential operation that you should perform on a regular basis. Because of this, drivers may be forced to choose between two distinct kinds of motor oil. It was previously said that this is a popular question, and it will now be answered. We’ll go over everything you need to know about combining two different kinds of motor oil. Every driver will encounter this predicament at some point. If your oil has to be topped off, there isn’t a substitute for the brand you currently have in your oil tank. Because of this, you may be forced to mix a different brand of motor oil with your current brand of motor oil. Now, you want to know what it does to your engine and if it’s safe to use. So allow us to shed some light on the matter.

Can You Mix Different Brands Of Synthetic Motor Oil?

There are many drivers who aren’t sure if they can combine two synthetic motor oil brands without putting their vehicle and engine at risk, thus this question needs to be answered now. To answer this question, yes, synthetic motor oil can be mixed with another brand. In the end, it’s important to understand that this does not mean you should. Let’s start with a discussion of the viscosity of each type of motor oil. Even though the viscosity of two different brands of motor oil is the same, it is never a good idea to combine them. There are many who believe this is an idea that should never be entertained. Your owner’s manual is the first item you should always look for. The next step is to determine which motor oil grade is most suited for your car and purchase it. If you mix two different kinds of motor oil, you could be putting yourself at risk.

Please allow us to elucidate. To begin, the composition of motor oil varies from brand to brand. Due to the fact that each manufacturer has a different formulation for the additives in motor oil, this is the reason. It’s impossible for a driver to understand the chemistry of these oils. Only the makers are privy to the chemistry and formulation of their motor oil’s additives and other chemicals. Because of this, it is impossible for us to determine how one brand of motor oil affects another brand of motor oil. The composition of these motor oils is a mystery to us. This means that while mixing two different types of motor oil is possible, it is not recommended.

What Happens If You Mix Different Brands Of Motor Oil?

For your car, you should only use the recommended oil. An owner’s manual should provide all of this information. Now, it’s possible that using two different types of motor oil could be harmful to your vehicle. When two different brands of motor oil are blended together, what happens? If you use two different types of motor oil with different API numbers, it can ruin your vehicle’s engine. In contrast, if you mix two different types of motor oil with the same API level, you may not cause any major damage to your car. The rule of thumb is important to keep in mind. If you can avoid using two separate kinds of motor oil, then you should do so. To keep the API mark’s compatibility and performance, manufacturers of these motor oils must meet the industry’s minimum standard. Your owner’s manual takes all of this into account when determining which API category and what type of oil should be used. It’s best to stick to the instructions in your owner’s manual and the brand you now use.

Can You Mix Different Brands Of 5w30 Oil?

If you must, you can blend 5w30 oil with other brands, although this is not advised. It is not recommended that you do so. But first, the American Petroleum Institute, or API, should be discussed. Every API motor oil must be compatible with other API motor oils. In order for two motor oils to be considered compatible, both the base oil and any additives must be present. The oil base will be made up of the additions. It will also influence the characteristics of a certain engine oil. So you may be wondering if there is a potential that API motor oils are incompatible with each other. Every oil company has its own proprietary methods for creating their fuels. As a result, their physical properties may differ. As long as the API guidelines are followed in production, they can be used interchangeably. It is therefore possible to make a certain viscosity of motor oil using different technologies and formulations from different motor oil brands. Anti-wear and antioxidant combinations and detergents used in various brands can be interchanged, as can the anti-wrinkle and anti-oxidant detergents. In addition, the formulas of each motor oil brand will be different. These businesses are able to alter their formula for up to two years, if not longer.

There will be no huge deal if changes are made to an existing formulation as long as it still meets the requirements. Because of this, it is usually advisable to avoid using two different kinds of motor oil in order to ensure that your vehicle and its engine are not harmed in any way, even if it is just a little bit.

Topping Off Oil With Different Brands – Is That Ok?

A few times in your life, you’ll find yourself in this situation. Unfortunately, you’ll have no choice except to switch brands when you top off your current oil. If you have no other option, you must use a different brand of motor oil to supplement your current supply. However, there are some drawbacks to be aware of. Even if the dangers aren’t life-threatening, your car will suffer as a result. Each brand has its own machineries, formulae, and other considerations to take into account. As a result, it’s wise to stay with a single brand. If you’re going to change your oil, drain all of it. This is due to the fact that you are unsure of how the oils will interact with one another. You have no idea how incompatible they are. Both the chemistry and the production of each oil are on different sides. You can’t afford to take any chances. As a result, it’s best to stick with a single brand of motor oil rather than blending two or more.


To summarize, if you want to keep your car running smoothly, you’ll require motor oil. This means that if you want to keep your car running at peak efficiency, you should do regular oil changes. With that in mind, if you have no other option, you may be forced to mix two different kinds of motor oil together. It can be blended, although it’s not recommended to do so.