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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:

Common Nissan Maxima vs. Subaru Legacy breakdowns

The Nissan Maxima and Subaru Legacy are both popular sedans. Similarities can be seen in price, styling, and performance. What are some common repair problems seen in each model? When do they occur and how much do they cost to fix? What about how to pay for car repairs? Let's find out. Check Engine Light Both Maxima and Legacy owners dread the appearance of this little light. In the Nissan, it's most likely a failed ignition coil. This part transforms the car battery voltage into a higher voltage required for starting. This problem appears more often in Maximas with over 140,000 miles. The cost to replace the ignition coil runs around $400, parts and labor. The check engine light on the Subaru Legacy is more often due to a failed oxygen sensor. The O2 sensor measures the oxygen level in the exhaust and can affect fuel consumption. This part fails more frequently in models with over 110,000 miles. The repair costs around $200. Legacy Sound System Problems It's not uncommon for the Legacy to have sound system failures at 140,000 miles or more. The speakers might not work or only function intermittently. Hitting a bump might also cause the radio to shut off. Repair costs here can vary, but the typical charge is around $600. Nissan Check Engine Light Part 2 The Nissan check engine light also may appear due to oil leaking from the camshaft position sensor. Difficulty with stalling and acceleration might occur as well. The repair costs around $250 and is more frequent in models with over 104,000 miles. Big-Ticket Items Some repairs are especially costly. In Maximas with over 120,000 miles, the power steering pump may begin to malfunction. This produces a clunking or knocking sound when driving over uneven terrain. Steering might be affected with abnormal noises heard when turning the steering wheel. A Nissan Maxima power steering pump replacement costs around $1,250, parts and labor. Now, if you begin to feel your Legacy vibrating or shuddering at around 116,000 miles, it may be a transmission problem. It's more noticeable when the car shifts gears. Legacy transmission repair can be expensive, costing up to $2,000 or more. Even more costly is a Subaru Legacy head gasket failure, seen more often at 110,000 miles or more. AC malfunction, fluid leaks, and engine overheating can occur when the head gasket fails. The repair costs are around $3,000.

Nissan Leaf sets another monthly sales record, Chevy Volt remains steady

Here we go again. Another month in the books and another month of record sales by the Nissan Leaf in the US. For October, the world's best-selling pure EV sold 2,589 units, which is 29.3 percent more than October 2013. That makes it 20 times in a row that Nissan can say that last month sales were better than the same month a year before. All told, Nissan has sold 24,411 Leafs in the US this year, a new record, reflecting an overall Leaf sales rate that is up 35 percent, year-to-date. Nissan isn't stopping, either. A new TV ad, one that, "encourages consumers to kick gas" by saving money on fuel will start airing today in major markets, according to Toby Perry, director of Nissan's EV marketing. You can watch it below. As for the Chevy Volt, things remained steady last month in the face of a new model that's coming in the second half of 2015. Chevy sold 1,439 Volts last month, which is about the same as September (1,394) but down 28.8 percent from the October 2013 despite GM having its best overall US October sales this year since 2007. So far, 2014 Volt year-to-date sales are down 14.9 percent through the end of October compared to 2013. And that wraps up the flash report on monthly sales for these two long-standing plug-in vehicles in the US market. As always, we'll have our in-depth write-up of US green car sales available soon. For now, we await your comments, below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.