20w50 oil and 10w40 oil have different weight and viscosity, so can they be mixed? We will find more about this in the following section, so if you are interested to know more, stay and keep reading.
So can you mix 20w50 oil and 10w40 oil? These two oils have different viscosities and weights, but they can still be mixed if you want to. However, it is not recommended.
Many car owners have trouble knowing the proper answer if you can indeed mix 20w50 oil and 10w40 oil. A lot of people are never mixing two oils that have a different viscosity and different weights. They are afraid that they might encounter problems with their engine because of the mixture.
Some people are already doing the mixing. None of them have reported severe damages to there yet, so it can be an assurance that there is no engine failure when using a mixed oil of 20w50 and 10w40. You might also be as confused as many car drivers about what to believe in this issue.
The public is divided into yes teams and no teams, so we can finally have some enlightenment on this matter in this article. If you wish to know more about this issue, you are on the right page. Keep reading and enjoy.
Table of Contents
Can I Mix 20w50 and 10w40 Oil?
This question can be answered by yes and no because all car drivers do each side. It means that you can mix 20w50 oil and 10w40 oil. However, it is not advised, and it is not recommended.
If you want to mix 20w50 oil and 10w40 oil, then you can. However, if you do not want to mix 20w50 oil and 10w40 oil, then do not. It is as simple as that.
You have to pick what you prefer to believe in and do just that. Many car owners are already mixing 20w50 oil and 10w40 oil. Some of these people have been doing it for a long time now, and they are still doing it. On the other hand, if you wish to stay in the safe zone and follow your owner’s manual and manufacturer’s recommendations, you should not mix 20w50 oil and 10w40 oil.
So to simply put it, the answer to this question is yes. Yes, you can mix 20w50 oil and 10w40 oil if you want to.
Can You Add 20w50 to 10w40 Oil?
People are also asking whether you can add 20w50 to your 10w40 oil. This scenario can happen when you might have no choice. But some people are also adding it up even if they have a choice.
The rule of the thumb is not to do it. It would be best if you stuck with what is inside your oil tank. You should top up your current oil with the same oil that you are currently using.
In your owner’s manual, it is stated there the recommended oil you should use. If both of these oils are in the recommendation, you can add them up if you have no choice.
These oils will not blend altogether and remain separated, but they can still do their job of lubricating your engine. So if you want to ask if you can add 20w50 to your 10w40, you can if you want to.
Can You Add 10w40 to 20w50 Oil?
Yes, you can also add 10w40 to your 20w50 oil. This is the decision of the car owner. If you want to top off your 20w50 oil with a 10w40 oil, then you can do it.
You have to remember that this is not recommended in your owner’s manual and by your manufacturer. The recommendation is to stick with only one motor oil.
However, it does not mean that you cannot do it. You still have the choice of adding one oil with another different oil.
Is It Ok To Mix 20w50 and 10w40 – Possible Downsides?
This is a question that gets different answers all the time. This is because there is no statement coming from companies about mixing 20w50 oil and 10w40 oil. So that means the people are relying on other people’s experiences for the result of mixing these oils.
So based on the experiences of some people, they have been mixing 20w50 oil and 10w40 oil, and they reported no significant casualties on their vehicle. They experienced no problem at all. It is just that mixing two oils might compromise the benefits and the function of one motor oil.
So the other question is the reason why you have to mix them. If there is no valid reason, then you should not mix 20w50 oil and 10w40 oil.
You can even encounter some downsides, especially if your vehicle is still under warranty. Your warranty can be voided if you mix two oils and use them in your vehicle.
What Happens if You Mix 20w50 and 10w40 Oil?
Nothing. There is nothing serious that can happen if you mix 20w50 oil and 10w40 oil. Well, of course, the possibility of engine failure or damages can still happen, but it is pretty unlikely.
As mentioned, there are no significant damages or issues that you can experience if you mix 20w50 oil and 10w40 oil. No one has ever reported any failures on their engine and any serious issues, so it can mean that mixing 20w50 oil and 10w40 oil is not dangerous. Some people also stated that you might not reap all the benefits if you mix two different oils.
So if you want to stay on the safe side, you should stick with just one oil at a time. This is to avoid any issues, if there are any.
In summary, 20w50 oil and 10w40 oil have different viscosity and different weights. This is why some people are having second thoughts to mix both of them because of their differences. But there are already a lot of car owners who are mixing 20w50 oil and 10w40 oil.
They have reported no issue at all. But the truth is that mixing two different oils is not recommended, so you can follow what is recommended or what you want.
Image credits – Canva