Rustbuster's Full Hot Fog Treatment is a thorough way to tackle early rust, but it comes with some messy side effects ...

The engine bay doesn't lie — here's what decades of care actually looks like.

While it may seem counterproductive, detuning an engine has many real-world benefits, and car manufacturers regularly release ...

It has stopped criminal prosecutions of people who install “defeat devices,” which make diesel trucks faster and more efficient but also dirtier.