August 7, 20178 yr Back in January, we reported on the rumor that Mazda was planning to launch a Homogeneous charge compression ignition (HCCI) engine for the 2018 Mazda3. HCCI engines are unique as they use compression, not spark to ignite gasoline. This will improve fuel economy and emissions. But the thing about HCCI engines is that automakers will produce prototypes and say they'll be coming within the new few years, and then nothing happens. We have some new details about Mazda's plan to debut their new HCCI engine. According to Motoring, Mazda will debut the engine at a technology forum in Frankfurt later this month. Reportedly, the engine will feature spark plugs to ignite the fuel at low rpms. Compression ignition will take place at higher rpms. Following this, Mazda will be showing off a concept at the Tokyo Motor Show in October. The concept will preview the next Mazda3 and possibly feature the new engine. The next Mazda 3 is expected to be revealed next year as a possible 2019 model year vehicle. Source: Motoring View full article
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