Our comprehensive guide to engine oil explains the pros and cons of each oil type and helps you decide which is best for your ...

Going full-synthetic can mean better engine protection and cold-weather performance at a higher price, but it may not be a needed upgrade for all cars. Changing your own oil is cost-effective, but oil ...

It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...

Diesel and gasoline engines might look alike under the hood, but they use oil in very different ways. Gas engines run cleaner, but diesels create much more soot, crank out higher compression forces, ...