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 ...

About the only attention most people give to engine oiling is a fresh filter and four or five new quarts of 10W-40 every couple thousand miles. For serious engine builders, however, the intricacies of ...

The basics of an automobile engine require lubrication. This means the role of the oiling system is critical to performance and especially critical for high-performance applications. To help you keep ...

Racers are a picky bunch. We scrutinize parts and sweat minute details down to the thousandth of an inch. We painstakingly gap spark plugs, set valve lash, and carefully select the brand and weight of ...

One of the smartest racecar builders around breaks down the difference between a dry sump system and the oil system in a normal car. Kyle Hyatt Former news and features editor Kyle Hyatt (he/him/his) ...

Your engine doesn't enjoy oil starvation. Sure, you could run dangerously low on oil and get away with it, but don't count on it. Let the oil flow, friends, whether your vehicle has a normal wet sump ...

Note: This is the third in a series that looks at the diesel particulate filter and maintenance best practices that an impact its lifecycle. The first installment, "Diesel coolant heaters boost DPF ...