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Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video:

Toyota, Mazda drop Takata as Mitsubishi, Subaru weigh options

It's not a very good time to be Takata right now. Fresh on the heels of longtime partner Honda ditching them, Toyota and Mazda have both come out and said they will not use the company's airbag inflators if they continue to rely on ammonium nitrate. Bloomberg reports that Subaru and Mitsubishi are also contemplating a divorce. "The inflator using ammonium nitrate produced by Takata will not be adopted by Toyota," President Akio Toyoda said during a briefing today. "What's most important above anything else is the safety and peace of mind of customers." Mazda echoed that position, simply saying it "will not use Takata airbag inflators which contain ammonium nitrate in our new cars." When you lose three huge OEM accounts in as many days, it's certainly going to have a deleterious effect on your fortunes. In Takata's case, that's meant a staggering 39-percent drop in their share price over the last three days. Yesterday alone, the company saw a 6.2-percent fall, Bloomberg reports. As the business publication reports, though, Takata isn't going down without a fight. The company is "considering some plans to survive," including a fundraising plan that will see it potentially offer up additional shares for sale. Still, at least one analyst doesn't see whatever company survives staying involved in the airbag inflator business. "I really don't see how they're going to be able to survive as an inflator manufacturer," Valient Market Research founder Scott Upham told Bloomberg. "When your major clients publicly come out and say that they're not going to use your products anymore, it makes this very difficult to sustain your business." News Source: Automotive News - sub. req.Image Credit: Carlos Osorio / AP Honda Mazda Mitsubishi Subaru Toyota Safety supplier

Mazda's Skyactiv-X power and efficiency ratings released in Europe

Mazda's long-awaited Skyactiv-X engine is finally headed for production, though not yet for the United States. The Japanese automaker says "various European countries" will get access to the unique engine in the Mazda3 starting this fall. Still, the announcement is relevant to the rest of us because we now have official power levels and fuel efficiency numbers that we can use to compare the Skyactiv-X with other engines offered in the compact Mazda. First, the power. According to Mazda, the 2.0-liter Skyactiv-X makes 178 horsepower and 165 pound-feet of torque. By way of comparison, the 2.5-liter Skyactiv-G engine currently used in the Mazda3 here in the States makes 186 hp and 186 lb-ft of torque. Sure, it's a little less powerful, but note that the displacements don't match and remember that the real reason the Skyactiv-X exists is to reduce fuel consumption. And that brings us to the Skyactiv-X's combined rating of around 53.5 miles per gallon (converted from liters per 100 kilometers). That's around 8 mpg better than the 2.0-liter engine that comes standard in Europe. Before we go any further, it's important to note that these numbers represent official figures for the European NEDC combined cycle, which means they are not directly comparable to the ratings we'll get from the United States EPA. Our official ratings will almost certainly be lower. With that disclaimer out of the way, the 2.5-liter Mazda3 scores a combined 30 mpg here in the States. The obvious unanswered question is when the Skyactiv-X might actually come to America. And the unfortunate answer is that we don't know. Mazda has yet to make an official decision on timing for the U.S market's launch of the engine, but as soon as we know, so will you.