While true, we don’t know what is the emissions output of an HCCI engine. Has Mazda made the engine meet current emission standards, especially now with the even stricter testing?
With much leaner charge, exhaust emissions should meet standards.
“While true, we don’t know what is the emissions output of an HCCI engine. Has Mazda made the engine meet current emission standards, especially now with the even stricter testing?”
Given that it is running at leaner and higher compresssions, it should be easier to meet emissions requirements.