Engine oil is the lifeblood of an engine, directly influencing its longevity, efficiency, and performance. Yet many drivers remain unsure about what those numbers and letters—like 0W-20 or API ...

If you've ever bought a quart of motor oil for your vehicle, you've likely encountered the letters API somewhere on the label. In fairness, there are a lot of abbreviations, symbols and odd number ...

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 ...

Although most drivers might not pay it too much thought, picking the right motor oil can have a significant impact on the expected life of the engine's components. There are so many oils to pick from ...

January 1, 2027, will be the first license date for two new heavy-duty engine oil categories, if all goes as planned. An update from the American Petroleum Institute said it has made significant ...