Your engine oil is as essential to your car as your blood is to your body. Without it, your motor won’t run. And just like a doctor can tell a lot about your health by testing your blood, you can ...

At a time when vehicle diagnostics can demand a computer science degree, being able to get some insight into your engine health with nothing but a rag and a bit of know-how can be downright refreshing ...

Every driver should know how to check and top off engine oil. Here's how to read the dipstick, add oil the right way, and keep your car running smoothly.

Even as cars become increasingly sophisticated, motor oil remains the engine’s lifeblood, and caring for this fluid is vital. Fortunately, this is a rather simple task—and your car’s onboard computer ...

Of all the advanced technologies that have impacted the automobile, some of the most significant, and perhaps the most seldom recognized, are the advancements in lubricants. And while modern engines, ...

Synthetic oil used to be something only performance cars needed, but not anymore. Now it’s the manufacturer-recommended engine lubricant in many mainstream vehicles, such as the Subaru Forester and ...

Advanced engine technology means today’s cars are exceptionally reliable and can go further than ever between trips to the workshop. That’s good news for drivers, but means it is more important than ...

Since an engine can suffer severe damage if it’s run too hot, you should certainly be concerned if there are indications the engine is overheating. But those indications may not be as clear-cut — or ...