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Japan plans real-world diesel emissions test after companies fail

Japan's transport ministry plans to start real-world diesel emissions tests after an experiment found four models from Toyota, Nissan, and Mitsubishi that produced more nitrogen oxide (NOx) emissions than the nation's rules allow, according to The Japan Times. Regulators there usually only perform emissions checks in the lab. The VW diesel scandal has everyone double-checking their figures. Diesel versions of the Toyota Hiace van, Land Cruiser Prado, and Nissan X-Trail produced up to 10 times more NOx than allowed. The Mitsubishi Delica D:5 was up to five times over the limit, The Wall Street Journal reports. There was no evidence of defeat devices in the vehicles. Mazda performed well in the experiment, though. The CX-5 passed with nearly the same results on the road and in the lab. The Demio, better known as the Mazda2, did nearly as well with only slighter higher figures in the real world than in the controlled setting. The experimenters theorized the reason for the excessive emissions was that cold weather caused the engines' software to shut off the exhaust gas recirculation to prevent damage, according to the WSJ. However, this behavior also increased NOx production. Toyota, Nissan, and Mitsubishi don't have to worry about punishment from the transport ministry because this check was just an experiment. Their models already passed the mandated lab tests, which was the only requirement, according to The Japan Times. As governments begin greater real-world emissions tests, the results suggests diesels aren't very clean. A recent check in France found models from Ford, Renault, and Mercedes-Benz that didn't perform up to the standards. Regulators in India conducted similar evaluations and ordered VW to recall over 300,000 vehicles. Related Video:

2017 Mazda CX-9 Prototype First Drive

If you read our coverage from last week's Los Angeles Auto Show, you'll note that we were extremely fond of the new Mazda CX-9. We like the look of the thing, inside and out, and it promises to be the best-driving entry in the three-row crossover class. We agree wholeheartedly with that claim. You see, we already drove it. Full disclosure: Our test of the camouflaged CX-9 prototype you see here was short, and while we were able to get a good handle on the CX-9's basic driving dynamics, it'll take more than a 30-mile session around the outskirts of LA to uncover the finer details. What's more, these vehicles are not production ready. In fact, according to our handlers at Mazda, the CUV we tested was actually at the stage before pre-production – so basically, a pre-pre-production car. That said, all the details about the engine, transmission, suspension, and steering are "largely final." As you can see in the gallery, the cars we tested were heavily camouflaged both inside and out. As for styling, we love it – see the undisguised pictures from the LA show for more views. And as for inside, we can say leather seats of our Grand Touring model were comfortable and supportive, and the smallish steering wheel felt natural in the hand. Even in pre-pre-production state, the CX-9 was impressively quiet. An extra 53 pounds of under-floor sound deadening, thicker windows, and active noise cancellation all contribute to what Mazda claims will be "among the quietest vehicles in its class." It's worth noting that the good sounds, like the throaty, whooshy noises of the turbocharged engine, found their way into the cabin just fine. The 2.5-liter, turbocharged four-cylinder engine – Mazda's first force-induced Skyactiv engine – is an excellent piece. The 2.5-liter, turbocharged four-cylinder engine – Mazda's first force-induced Skyactiv engine – is an excellent piece. It uses a variable geometry turbocharger, which the company calls a Dynamic Pressure Turbo. Here's how Mazda explains it: Imagine a normal garden hose. Put your thumb over the nozzle, and the force of the water increases dramatically. That's the DPT at low rpms. It features three small exhaust ports to direct exhaust gases into the turbo, making for 17.4 quick-spooling PSI at low rpms. As the revs climb, a flow control valve opens up, redirecting the gases to a trio of larger ports – removing your thumb from the hose, if you will – and keeping the boost up.

Junkyard Gem: 1986 Mazda 323 DX Hatchback

Mazda built generation after generation of the Familia, starting with the Giugiaro-styled machines of the 1960s. The first Familia that sold well in North America was called the GLC (for "Great Little Car"), and it began life as a rear-wheel-drive cousin to the RX-7 before the Familia went to a front-wheel-drive platform for the 1981 model year. The GLC name stuck around these parts through 1985 — and I've documented a few discarded examples of these now-rare machines during my junkyard travels — before getting the 323 name starting in the 1986 model year. It's no sweat to find 1990s 323s in junkyards, but I've been scouring the car graveyards of the land for the elusive early 323 and, finally, found this moss-encrusted '86 in a San Francisco Bay Area yard. BMW popularized the lower-case-i nomenclature for fuel-injected cars with the first 3-Series back in the 1977 model year, and Mazda wasted no time making "1.6i" badges to tout the futuristic technology under the hood of their low-priced econo-commuter a decade later. At a time when most Civics had carburetors (and the notorious "Map of the Universe" diagram to untangle the underhood vacuum lines), the electronically fuel-injected engine in this car was a major selling point indeed. It wouldn't be many more years before the wretched Subaru Justy was the final carbureted Japanese car available in America, but this 1.6-liter B6 four-cylinder (which evolved into the engine that, flipped 90 degrees, powered the early Miatas) was high-tech stuff for a cheap car in 1986. Just 84 horsepower, but they were clean and reliable horses. In the middle 1980s, the common perception in North America was that you had to buy a Honda or Toyota if you wanted an affordable car that could make it to 200,000 miles. This 323 held together just as well as most Tercels or Civics from 1986. Of course, I've seen a junkyard RX-7 with 393,854 miles, so you just never know. When you see lots of moss and lichens on a car in a Northern California junkyard, you know it spent years — maybe decades — languishing in a shady outdoor spot. Perhaps this car racked up 20,000 miles per year slogging through a harrowing Lodi-to-Sausalito commute, then got parked and forgotten in 1996. We'll never know. With the optional automatic transmission — nearly every early 323 I've seen had the 5-speed manual — this car wouldn't have been much fun to drive. Point A to Point B would have been fine, though.