Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...

Love racing, but not a fan of the sport's carbon footprint? Idemitsu is hoping to bring that down a notch with its new Plantech Racing engine oil, which uses plant-based raw materials for more than 80 ...

That old engine may be tougher than you think — if you treat it right.

Our favorite Russian car vloggers are at it again with another strange experiment. Can you use a bunch of oil filters to restore dirty, black engine oil back to new again? Vlad from Garage 54 is ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

When something feels off with your car, it's always a good idea to pay close attention. Often, these small signs are hints that there's a bigger problem that needs your attention. For example, you ...

CCJ's 10 44 is brought to you by Chevron Delo, heavy duty diesel engine oil. Now there's even more reasons to choose Delo. An oil sample is only as good as the method used to pull it. You're watching ...

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 ...

This may sound like something out of the original "CSI: Crime Scene Investigation" TV series, but you can tell a lot about engine health by pulling out the dipstick, reading the oil level, and ...

Engine oil (or motor oil, whichever term you prefer to use) is an essential substance when it comes to keeping an engine running smoothly. Your engine's oil will start to run down over time, however, ...

Pulling out all the stops in trying to squeeze every last cent out of your fuel dollar these days? I am right there with you. From checking the tire pressure daily to washing the car more often to ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...