Can 5w30 be used instead of 10w30?

Can 5w30 be used instead of 10w30? 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. What happens if you put 5w30 instead of 10w30? Most oils will mix … Continue reading Can 5w30 be used instead of 10w30?