Let’s explain all of those confusing numbers, letters and terms to help you choose the right oil for your car.

Motor oil comes in a variety of forms, designated by pairs of numbers, but the most common two are 10W-30 and 10W-40. What's the difference between them?

Everyone knows that regular oil changes are important for an engine's longevity. But what does motor oil do, and does getting ...

qualities like the viscosity of the oil and the additives used vary between the two products. So, to ensure you're using the right oil for your beloved project car, we've rounded up the main ...

Learn what gear oil is, how it differs from transmission fluid, and why using the right lubricant is crucial for your vehicle ...

In the past, there have been similar shifts in preferred engine oil viscosity grades. An example is the transition in heavy duty diesel engine oils in the 1980s from monograde viscosity SAE 30 and ...

Changing a lawn mower's oil isn't a task you have to do often, but when you do have to do it make sure you have the right oil ...