Viscosity is the measure of a fluid's resistance to flow.
Spring and fall constitute “oil-change season” for many, but that schedule is more tradition than a maintenance imperative.
Using a lighter winter oil weight when the temperature drops can improve cold starts and maximize wear protection at startup.
This comparative viscosity chart can help determine if two or more lubricants have similar viscosities.
The primary differences are their viscosities when cold and once your engine has reached operating temperature.
It's best to use the recommended viscosity, but a slightly thinner or thicker oil likely won't cause harm.
When deciding which oil to use in your car, ensure you use the correct viscosity of oil that meets the...
Synthetic oil allows for lower viscosity without compromising wear protection and better cold-flow, both of which improve fuel economy.