Bosch's RCH system aims to help OEMs meet stringent emissions standards by providing a solution that reduces harmful pollutants during engine startup.

A gasoline engine’s dirtiest moment lasts only a few seconds. In the time between ignition and the catalytic converter ...

You probably think you’re being kind to your engine on icy mornings, either by hopping in and driving gently right away or by letting it sit and idle while you scrape the windshield. Mechanics say one ...

Q I have a 2006 Honda Accord four-cylinder with 105,000 miles. It has developed a clicking engine noise on a cold start. After the car has warmed up, the sound goes away. I have seen references to a ...

If you search for any performance vehicle plus “cold start” on YouTube, you’re likely to be served hours and hours of sonorous content. But have you ever wondered why cold starts sound so good? The ...