What could possibly go wrong if you use automotive oil in a motorcycle engine? These are the key differences between ...

Synthetic motor oil offers many advantages over conventional engine oil. Synthetics resist chemical degradation far better than traditional oils, and they typically have a higher viscosity index that ...

High-mileage oil is loaded with advanced additives intended to solve specific problems for high-mileage engines. You should ...

Many owners even consult trusted auto experts, and some begin their search for quality vehicles at places like the best used ...

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

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for when ...

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

But if you do what you can to maintain your vehicle properly, you can prolong the lifespan of your car. Taking care of the engine, fuel tank, battery and using the best quality products on your car ...

Developing a gasoline-powered rotary engine was a dream for Felix Wankel, and we mean that literally. Some steam engines worked on the same basic principle as far back as the 18th century, but the ...

From a new V3 Honda engine to Toyota’s latest Hilux, these are the biggest stories in car news today.