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2014 Mazda6 recalled due to fuel overfill fire risk

Mazda is recalling 19,000 Mazda6 sedans from model year 2014, over concerns that the fuel tanks can be filled up too much. What is it with Mazda and fuel tanks?
The big concern is, obviously, spillage when filling up. There's also a risk that a radical temperature swing could cause the fuel volume to expand, causing a full tank to spill over without the driver knowing about it. According to the National Highway Traffic Safety Administration bulletin, if the fuel spills over, it could end up in something called the charcoal canister, which helps with the car's emissions. If it fills up the canister, it could leak out onto the road. None of this is really desirable.
The affected vehicles were all built between October 25, 2012 and May 9, 2013. It's unclear if there have been any fires due to this problem. Dealers should have been notified by now, while owners should begin receiving official recall notifications very soon.

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:

Mazda RX-7 could return in 2020

We like writing about the next Mazda RX-7 because it's like writing about the Chupacabra, Slenderman, or the Florida Skunkape, all of which are imaginary creatures seen by someone who knew someone who had an uncle whose dead great-grandfather's sister took a picture of it, invariably at night, while she was drunk, with her 1933 Kodak Brownie. Autocar is the latest with an RX-7 revival, saying it could come as soon as 2020 to celebrate Mazda's 100th anniversary. Before we get to that, let's take a brief look at RX-7 rumors. In 2009 there was speculation we'd get a concept RX-7 at the Tokyo Motor Show. That same year it was predicted the RX-8 would die to make room for a new RX-7 in 2012. In 2010 Mazda was developing a 300-horsepower rotary for the RX-7 that could run on gasoline or diesel and had better fuel economy and less oil consumption. Then Autocar said we could get the new RX-7 by 2013, a rumor that turned into a new RX-9 based on the Mazda MX-5 Miata platform. In 2012 the potential arrival date had become 2017. In 2013 the company CEO Masamichi Kogai said the equivalent of "Not gonna happen," and he said it again last year, just 90 days ago. It should be clear by now that this car is Mazda's version of the Lotus Esprit. Whew. Now that we're clear on all that, what does Autocar say? That a follow-up to the extinct RX-8 is coming that will sit on the new MX-5 Miata platform, and Mazda's vice president of European R&D said there are still 30 engineers working on rotary engines in partnership with universities. The successor will be front-engined and rear-wheel drive, have either two seats or 2+2 seating, and could be called RX-6, RX-7, or RX-9. That sounds like three distinct statements, only one of which is definitely true, that could possibly just maybe add up to a new RX-7, but could even more likely add up to a rotary-engined concept car that never sees production. We've only got five more years to wait, and since we've been begging at the RX-7 doors this long... Related Video: News Source: Autocar Rumormill Mazda Coupe Performance rotary rotary engine mazda rx-7