Home » BBC News - Technology » technology news » Mazda hails more efficient petrol engine Mazda hails more efficient petrol engine Unknown 6:03 AM BBC News - Technology technology news The carmaker says it is the world's first commercial petrol engine to use compression ignition. from BBC News - Technology http://ift.tt/2uooDKW Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati