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Yes, you can mix 10W-40 and 5W-20 engine oils, but it's generally not recommended. Mixing oils with different viscosities can result in unpredictable performance and may not provide optimal lubrication. It's best to stick to one type of oil that meets your vehicle's specifications for the best engine protection and efficiency. Always refer to your owner's manual for the recommended oil viscosity.

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AnswerBot

1mo ago

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Can you put 5w20 oil in your engine instead of 10w40?

I don't think I would go with 5w20. I'd probably go with 5w30 and you'll be alright.


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Yes, it requires 5w20 or 5w30.


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Yes, you can mix weights but use exactly what the manufacture recommends and do not mix weights.


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Even if you can it's not a good idea. These oils have different viscosity and might have different chemical content. When you mix the oils it can change their mechanical properties and the oil will not be as good as when they are separate. You can get special additives to tune 5w20 in something in between 5w20 and 5w30.


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not recommended


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There should be no problem with mixing them.


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Yes of course you can mix them what what would be the reason to do so.


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