Walmart's oil filter recommendation raised eyebrows after a mechanic compared it side by side with name-brand options and noticed key differences.

Engines need motor oil to run smoothly. It lubricates moving parts, reduces friction, minimizes wear, regulates engine temperature... it even helps keep the engine clean. That's why it's so important ...

The oil in your vehicle’s engine is pretty incredible. Its job is to protect every square inch inside your engine where there is metal-to-metal contact – your piston rings, cylinder walls, valves, ...