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Why Mazda’s Skyactiv-X compression-ignition engine is a smart hedge bet

Mazda has cracked the code on a compression-ignition engine, called Skyactiv-X (which utilizes SCCI, or Spark Controlled Compression Ignition). That's a neat engineering accomplishment, sure, but why is the tiny company investing big dollars in fancy tech that's frustrated the much larger companies who've investigated it? In this case, Mazda is peering into a crystal ball to consider how best to flow with a few troubling tides. One is the premature handwringing about the death of the internal combustion engine, another is Europe's swing away from diesel engines. Skyactiv-X seems, at this juncture, a hedge bet against both aspects. EV infrastructure lags massively behind our petroleum infrastructure — no shock there. Mazda claims the tech will net 20-30 percent gains in fuel efficiency over its current gasoline engines and about matching its diesel engine. And that's without any onboard hybrid tech, so that staves off the inevitable necessity to fully adopt electrification for a while — this is assuming that, at some point, it won't be practical to sell a non-hybrid or non-EV. At what date that happens is open to debate, but as I said above, technology like this kicks that decision point down the road a bit. Mazda is here translating research dollars into time, allowing its engine factories a few more years of probably profitable production of internal-combustion engines before retooling, and before somebody needs to pour a massive amount of money into a broad EV charging infrastructure to replace gas stations. None of this is happening fast enough for a wholesale transition to EVs anytime soon. So, that's one bet hedged. The next is Europe's declining interest in diesel engines for mainly health reasons. Just about a week ago, The New York Times posted an excellent primer on this issue, which is somewhat controversial in Europe. Germany's auto industry, a huge portion of its economy, is heavily invested in diesel tech and seriously opposed to proposals in Britain and France to eliminate the technology, which creates unhealthy diesel particulate emissions. The German industry is hoping Band-Aids like pollution-reducing measures will help them, but after a massive and widespread emission cheating scandal, its credibility is at a nadir. It seems like consumers have sensed which way the wind is blowing, and it has hurt sales. The NYT reports that diesel sales in Germany alone — remember, bastion and originator of diesel technology — are down 13 percent.

J.D. Power dependability survey is out, but you shouldn't depend on it

J.D. Power has just released its latest automotive dependability survey, which of course has usual suspects Buick and Lexus ranking high. Those are safe and solid findings, surely. But when you look a little closer, there are curiosities. Our Consumer Editor, Jeremy Korzeniewski, offered an explanation a couple of years back for why this survey should be viewed with a degree of skepticism, and his take is worth a re-read. What jumped out at Jeremy were the relatively low spots assigned to Mazda, Subaru and Scion among the ranking of makes. Back in 2016 when he wrote his piece, they were ranked 21st, 23rd and 24th respectively. In this year's survey, Mazda ranks 15th and Subaru 26th, both below the industry average of 142 reported problems per 100 vehicles. (And Scion, of course, is in car-brand heaven.) Now, part of what is going on here is surely the fact that all automotive brands are producing dependable vehicles compared with years gone by, so the degree of variance between the best and worst on the list is not as great as it once was. "For the most part, automotive manufacturers continue to meet consumers' vehicle dependability expectations," Dave Sargent, a J.D. Power vice president, said in a statement. "A 9 percent improvement is extremely impressive, and vehicle dependability is, without question, at its best level ever." That said, when a brand like Subaru, regarded by many as mechanically bulletproof, ranks 26th, it leaves people who know cars scratching their heads. Something there does not compute. The problem, as Jeremy pointed out, is one of methodology: When he wrote his piece, there was no weighting assigned to the problems reported in the survey. And that still appears to be the case. Therefore, a problem with an infotainment system or a loose piece of trim is deemed as serious as a blown engine or leaky transmission. (And yes, infotainment is still the biggest problem across the board.) Jeremy's point: If the categories of problems were weighted, you'd see a different picture. When you look at the Consumer Reports brand rankings (subscription required), you get a very different picture. in CR's rankings, Subaru is No. 6 among brands, which, well, sounds a lot more like it. CR singles out the redesigned 2017 Impreza as a car with some new-model problems. (The BRZ had the fewest.) The two surveys jibe a little more closely when it comes to Mazda, which CR ranks 12th, a drop of six places from previous-year rankings.

Five automakers now being investigated by NHTSA for airbag woes

It appears that Toyota's renotification to owners of recalled vehicles from last year is just the tip of the iceberg for what could potentially be a much larger industry-wide recall. The National Highway Traffic Safety Administration is opening a preliminary evaluation investigation into roughly 1.1 million vehicles from Chrysler, Honda, Mazda, Nissan, Toyota and parts supplier Takata regarding faulty airbag inflators in several models.
NHTSA has received six reports - three directly, two from Takata and one from Toyota - of vehicles with ruptured airbag inflators from 2002-2006, which resulted in three injuries. So far, all six incidents have occurred in high humidity areas like Florida and Puerto Rico. According to Toyota's latest recall announcement, the inflators may have an improper propellant that could cause it to rupture in a crash and the bag to deploy abnormally.
This new investigation follows a previous recall from April 2013 of about 3.4 million vehicles worldwide for the airbag inflators from Takata. As Autoblog reported, Toyota jumpstarted the new situation when it found that the original list of serial numbers for the faulty part was incomplete and discovered more cars in need of replacement. Honda and Nissan told us that they were investigating whether further models would need called in again as well. Mazda told Autoblog: "Regarding the current Takata situation, we're working closely with NHTSA and investigating the situation, but nothing else to report at this time." Chrysler Group responded to us with the statement: "Chrysler Group engineers are conducting the appropriate analysis. The Company will cooperate fully with the National Highway Traffic Administration."