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 ...

The pressurized wetsump oiling system on most production vehicles will look like this. Oil is stored in the oil pan and sucked into the oil pump (which is also located in the oil pan) to be pumped ...

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 ...

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 ...

Drive a few HPDEs or drag races and it won’t take long to figure out that your car’s performance bottlenecks aren’t really about power or torque—they’re about oiling. A built small-block with bonkers ...

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 ...

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 ...

In terms of sheer horsepower, the 1960s were truly the golden decade for American cars. Car manufacturers were locked in fierce competition, challenging what was possible both on the streets and the ...