What Is The Difference Between 5W30 And 10W30 - But they vary viscosities for cold. Web the first number is its viscosity in cold environments, while the last number is the viscosity in hot environments. Web essentially, 5w30 is a more versatile oil suitable for a wider range of temperatures, while 10w30 is more appropriate for.
Web essentially, 5w30 is a more versatile oil suitable for a wider range of temperatures, while 10w30 is more appropriate for. Web the first number is its viscosity in cold environments, while the last number is the viscosity in hot environments. But they vary viscosities for cold.