Can you mix 5w 30 and 10w 30 oil?
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Also to know is, can you mix 5w30 and 10w30 oil?
Keep in mind oils do not mix if you have 5w30 and add 10w30 it won't give you a blens both oils will stay seperate so you will have a few quarts 5w30 and a quart 10w30 they never mix.
Similarly, can you mix different weights of motor oil? Mixing different oils will not improve the performance or efficiency of the engine in any way. The additives in synthetic oil may have limited or no effect at all when mixed with a regular engine oil. Now, as far as different grades are concerned, mixing between them isn't something that will damage your engine either.
One may also ask, can you substitute 10w 30 for 5w30?
Yes. 5w30 and 10w30 are both 30 weight oils and the exact same thickness in your engine when it is at operating temperature. The 5w30 is better because it thickens less when cool or cold. Thinner oil gets to the top end faster.
Which oil is better 5w30 or 10w30?
5w30 is less viscous than 10w30. 5w30 is also the thinner engine oil of the two at lower temperatures. 5w30 is used for light-duty engines while 10w30 is used for engines which carry heavier loads. 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine oil.