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 ...

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 ...

Got a low-oil warning light? It's bad to have too little oil in your engine, but it's also a problem if you add too much. So be careful not to overfill your engine. Also consult your owner's manual to ...