Can I use 5W-30 oil instead of 10W-30 oil? - Quora. 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.
Is 5w30 or 10w30 better for winter?
10w30, the thinner 5w30 will circulate quicker, and flow through bearing tolerances better during an engine startup in the winter or colder climates. The “w” behind the five and the 10 indicates that those are the viscosities in colder or winter temperatures.
Is 10w30 better for older engines?
Engine oils are more characterized by viscosity. Both 10w30 are thicker and suitable for heavy-duty and older engines.Oct 2, 2021
Can you use 5w30 instead of 5w20?
Can You Use 5w30 Instead Of 5w20. It is not recommended. Although they both have the same winter rating of 5, the thickness (viscosity) of 5w30 is a bit higher than 5w20. That means your engine's at stake for using the high viscosity oil.