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Mazda6 diesel engine delayed over low performance, still coming

Oh Mazda... we had many hopes for the promised diesel four-cylinder in the Mazda6, but those have remained largely unfulfilled, as the oil-burning powerplant has failed to appear on dealer lots following its 2012 LA Auto Show announcement. Despite engineering issues that forced the company to announce that the program was delayed back in September 2013, Mazda remains adamant that the 2.2-liter Skyactiv-D is still coming to our shores. "We're still very much committed to diesel," Mazda's North American CEO, Jim O'Sullivan, told Automotive News. "We are still working on getting the performance aspects up to where we want them, and we do have a plan – an engineering road map – to get it done." According to AN, Mazda's initial plan with the 2.2-liter diesel was to build an engine so clean it could get by without an aftertreatment system, which generally accounts for the price premium of diesel engines versus their gas counterparts. The new system has come with performance issues, though, necessitating the delays. "If [we were] a commodity brand and didn't care about that, it would be on the market right now," O'Sullivan told AN. "But I know the people were expecting something from us, expecting certain drive characteristics and performance, and I didn't want to disappoint them." While O'Sullivan's defense of the diesel Mazda is admirable, the exec stops short of giving us an indication of when the new engine will finally arrive.

Mazda Skyactiv-D racer first diesel to run at Indy in 60 years

While it may not be touting the old "Win on Sunday, sell on Monday" axiom we all know and love, Mazda recognizes that racing can only improve its cars. And so it's no surprise that the Japanese automaker is testing and refining its Skyactiv-D diesel engine by sending it out on various race tracks around the country - notably being the first diesel ever to compete at Daytona and the first to notch a Grand Am win at Road Atlanta.
Next up? Indy. It has been over 60 years since a diesel-powered machine ran at the Indianapolis Motor Speedway, and the Cummins-powered racer that competed in the 1952 Indy 500 with a 6.6-liter inline-six-cylinder oil-burner was a fast and brutal machine that set a new lap record in qualifying leading up to the race. Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that's something Mazda hopes to accomplish once again.
Mazda says that the diesel engine in its race car is pretty darn close to stock - 51 percent stock by parts count, and 63 percent stock by weight - which means the way it performs in competition is at least a somewhat meaningful way to the stock engine's durability in the real world. Check out the image of the Mazda6 Skyactiv-D racer posing alongside the 1952 Cummins above (click to enlarge) and feel free to peruse the press release below for the rest of the details.

Ford expands 'Do Not Drive' airbag warning to 33,000 more Ranger trucks

WASHINGTON — Ford on Monday warned an additional 33,000 owners of older pickup trucks in North America to stop driving them until potentially defective Takata Corp airbag inflators can be repaired. In January, Ford told 2,900 owners of model year 2006 Ford Ranger trucks to stop driving immediately after a second death was linked to inflators built on the same day. The expanded warning was prompted by additional testing, Ford, the second largest U.S. automaker, said in a statement, and now covers a broader time frame of production. Mazda Motor Corp said it was issuing a similar expansion for about 1,800 2006 Mazda B-Series trucks that were built by Ford after it had issued a warning for 160 trucks in January. The National Highway Traffic Safety Administration (NHTSA) said the vehicles pose "an immediate risk to safety" and urged owners to immediately schedule a free repair. Ford and Mazda have replacement airbag inflators available now and will tow vehicles to a dealership for repairs as well as provide loaner vehicles free of charge, the companies and NHTSA said. About 90 percent of the vehicles subject to the "Do Not Drive" warning are in the United States. Two U.S. senators in January questioned why Ford's warning only applied to a small number of the 391,000 2004-2006 Ranger trucks recalled because of Takata air bags in 2016 in the United States. Ford said last month the death in a July 2017 crash in West Virginia in a 2006 Ford Ranger was caused by a defective Takata inflator after a similar 2015 death in South Carolina. At least 22 deaths worldwide are linked to the Takata inflators that can rupture and send deadly metal fragments into the driver's body. The faulty inflators have led to the largest automotive recall in history. The other 20 deaths have occurred in Honda vehicles, most of which were in the United States. About a quarter of the 2,900 vehicles have been repaired since Ford issued the warning last month, the company said on Monday. Takata said in June it has recalled, or expected to recall, about 125 million vehicles worldwide by 2019, including more than 60 million in the United States. About 19 automakers worldwide are affected. Takata inflators can explode with excessive force, unleashing metal shrapnel inside cars and trucks and have injured more than 200 people. The defect led Takata to file for bankruptcy protection in June.Reporting by David ShepardsonRelated Video: