A small gap with big importance in the performance and health of an engine - here's everything you need to know.

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

'Breathe in . . . breathe out. Simple respiration is what keeps us alive, and your engine is no different. On a normally aspirated engine, atmospheric pressure pushes air in through the carb, intake ...

We may receive a commission on purchases made from links. Car engines derive power from thousands of miniature explosions contained within their cylinders every minute. We quickly become accustomed to ...

Want to know how healthy or unhealthy your engine really is? Get yourself a compression tester and find out. Despite how complex many modern vehicles are, you can do many common repair and maintenance ...

The magic of computers now lets anyone with a home computer build and test virtual engines in minutes. One of the best-selling programs in the budding field of engine-simulation programs is the ...

Michal studies Automotive Journalism at Coventry University in the UK, and has been writing for CarBuzz since March 2025. He was nominated for student culture piece of the year recently and has been ...