Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...

Over time, this single error can shorten an engine's lifespan and lead to considerable expense.

Mechanics are blunt about it: the “little” oil spot under a parked car is often […] ...

While everybody knows what the oil pump's job is and why it's there, few enthusiasts consider the lowly bubbler as a possible engine tuning resource. We've come to appreciate that it takes power to ...

An engine's oil pump dispenses the pressurized lubricant that prevents opposing surfaces from contacting one another, carries heat away from certain areas, and maintains minimal valvetrain lash when ...

Think of motor oil as the life’s blood of your car’s engine. Checking it on a regular basis is a key part of keeping your engine running well and getting the most miles out of it. The oil lubricates ...

Ever wondered what all those letters and numbers mean, and how they affect your car? Here are all the answers you need.

An engine oil pan, also known as an oil sump, is a metal container that sits at the bottom of an engine block, underneath the crankshaft, and holds the engine oil. The oil pan is responsible for ...

Too much oil can cause low oil pressure just like too little oil. A ticking sound or a low oil-pressure light could indicate too much oil is in the engine. Drain off excess oil to avoid damage to your ...