How Stuff Works

Slippery roads

Fuel quality and engine performance

A matter of balance

Clutches and new transmissions

Pinstriping using the Beugler Striper

Pinstriping using the Beugler Striper

Instrument clusters

Instrument clusters

Oils that save fuel

Atkinson Cycle engines and Hybrids

Atkinson Cycle engines and Hybrids

Noisy mufflers

Fords 2011 SuperDuty Power Stroke Diesel

Fords 2011 SuperDuty Power Stroke Diesel

Variable valve timing

Servicing wheel bearings

Oxygen sensors

Oxygen sensors