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Mitsubishi cheated on Japanese fuel economy test since 1991

Mitsubishi now says that its cheating on Japanese fuel economy tests stretches as far back as 1991. The automaker has hired an independent panel of investigators to get to the bottom of what happened, and the company will give them three months to prepare a report about the deception. Mitsubishi's cheat involves how the company calculated driving resistance to determine fuel economy. In 1991, Japan's Road Transport Vehicle Act established a coasting test to establish the driving resistance, but Mitsubishi's engineers used their own "high-speed coasting test," according to its statement. In 2007, the company decided to only use the country's mandated evaluation, but the employees kept utilizing the high-speed test in the field. In the most recent scandal, workers selected low values for driving resistance from the results, which made the fuel economy look better. Mitsubishi's presented these details in a report to the Ministry of Land, Infrastructure, Transport, and Tourism. "We are currently investigating the reasoning behind each of the decisions," the company said in a statement. It also hired three former prosecutors to figure out why this happened for so long. At this time, Mitsubishi only confirms the incorrect figures for some of the company's minicars, but this investigation could discover more transgressions. This fiasco started when Nissan discovered fuel economy discrepancies in some of its Mitsubishi-made tiny kei-class cars in Japan. Mitsubishi came clean and admitted the problem affected about 625,000 vehicles in the country. Japanese media have alleged more vehicles have incorrect mileage, including the Outlander. The National Highway Traffic Safety Administration in the US has also requested data from the Japanese automaker to confirm similar deceptions didn't happen for vehicles here. Related Video: Regarding the Report to MLIT Concerning Improper Conduct in Fuel Consumption Testing of Vehicles Manufactured by Mitsubishi Motors Corporation Tokyo, April 26, 2016 The following is a summary of the report submitted by Mitsubishi Motors Corporation (MMC) to the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) today, pursuant to instructions received from MLIT on April 20 to investigate improper conduct in fuel consumption testing of vehicles manufactured by MMC. Report Summary 1.

EPA, CARB want Mitsubishi to retest US fuel economy figures

The Environmental Protection Agency and California Air Resources Board are the latest government bodies to request details from Mitsubishi in connection with the company's fuel economy cheating, Automotive News reports. The company will also have to reevaluate the mileage for some models here. "The agency will be directing the company to conduct additional coast down testing for vehicles sold in the US," an EPA spokesperson told Reuters. The EPA, 'will be directing the company to conduct additional coast down testing for vehicles sold in the US.' The EPA's coast down test requires vehicles to roll from 80 miles per hour to a stop. Automakers' engineers collect data on the model's drag, rolling resistance, and drivetrain friction. The information then goes into a dynamometer for the mandated fuel economy test. The EPA set stricter guidelines for the test in 2015 starting with 2017 model year vehicles, which might help avoid similar scandals here in the future. Japan has also used a coast down test since 1991, but Mitsubishi recently admitted that it hadn't been following the evaluation's mandated protocols there. Instead, the automaker came up with its own "high-speed coasting test." By selecting favorable values from the results, the company was able to artificially inflate the fuel economy of at least four Japanese minicars. In addition to inquiries from CARB and the EPA, the National Highway Traffic Safety Administration has also requested similar details from Mitsubishi. However, there is no evidence yet of any fuel economy irregularities for vehicles in the US. These agencies are just checking things out in reaction to the massive scandal in Japan. Mitsubishi execs are trying to weather the storm, though. Chief Operating Officer Tetsuro Aikawa and CEO Osamu Masuko have denied rumors about resigning over the scandal, according to Automotive News Europe citing a Reuters report. "It's my responsibility and my mission to put the company on track to recovery," Aikawa said. Their decision came despite the automaker's stock losing half of its value since the fiasco started, and vehicle orders in Japan have dropped significantly, too. Related Video: News Source: Automotive News - sub. req., Reuters, Automotive News Europe - sub. req.Image Credit: Toru Hanai TPX / Reuters Government/Legal Green Mitsubishi Fuel Efficiency mpg vw diesel scandal

NHTSA begins inquiry into Mitsubishi fuel economy

The National Highway Traffic Safety Administration wants to make sure Mitsubishi doesn't falsify fuel economy ratings in the US like the company does in Japan. "We've requested information from Mitsubishi about this issue," a NHTSA spokesperson told Reuters. The person didn't provide details about the specific models the regulator wanted to know more about. At this time, there's no evidence of fuel economy inaccuracies for any North American models. The affected vehicles in Japan so far are 625,000 small kei-class cars, including the Mitsubishi eK, eK Space, Nissan Dayz, and Dayz Roox, which Mitsu produces for Nissan. However, Japanese regulators are taking a closer look at other models and gave the company a week to hand over test data. A newspaper there claims Mitsubishi allegedly used "non-Japanese test methodology" on the RVR, Outlander, Pajero, and Minicab MiEV. NHTSA's look into Mitsubishi comes at the same time the Department of Justice is scrutinizing Daimler for possible emissions anomalies. "Daimler will consequently investigate possible indications of irregularities and of course take all necessary action," the German automaker said in a statement. The company asserts the DOJ's inquiry is unrelated to a lawsuit from owners, which alleges the BlueTec emissions control system is designed to turn off at low temperatures. Related Video: