Car engines have used motor oil for the whole of automotive history, and during that time a lot of myths have cropped up ...

Changing your car's oil is a great feeling, right? You save money, you feel self-reliant, and you get to look at the black goop you just drained and think, "Yep, that did some serious work in there." ...

Everything, even the smallest of things, can affect the performance of your engine. Whether topping off your fuel tank or driving on motor oil past its expiration date, you're slowly killing your car.

Renault and Castrol have partnered to introduce a co-branded range of premium engine oils made with recycled base stocks. The ...

Have you ever woken up in the middle of the night worried that you have never, ever changed the oil on your two-stroke lawnmower? Well, you can relax. A two-stroke oil change is like a left-handed ...

Despite the rise in popularity of electric vehicles (EVs) in recent years, for now, internal combustion engines still rule the roads. Humanity relies on these engines for everything from personal ...

Ask several different people, and you’ll get different answers about how often oil should be changed. Some suggest every 3,000 to 5,000 miles. Others say that one can drive between 7,500 and 10,000 ...

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 ...

Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

As covered extensively in the past, General Motors is recalling nearly 600,000 vehicles in the U.S. in order to address a supplier-level defect affecting the naturally aspirated 6.2L V8 L87 gasoline ...