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Ford finds flex-fuel engine design plays big role in emissions output

How bad is ethanol for your engine? There's been a lot of debate on this issue as the US considers upping the biofuel content in the national gasoline supply from 10 percent (E10) to 15 percent (E15). The ethanol industry and some scientists say higher ethanol blends show no "meaningful differences" in new engines while the oil industry says ethanol creates health risks. Researchers working at the Ford Research and Innovation Center decided to take a closer look at how a wide range of gas-ethanol blends - E0, E10, E20, E30, E40, E55 and E80 - affected the emissions coming out of a flex-fuel 2006 Mercury Grand Marquis. To see the full report, printed in the journal Environmental Science & Technology, requires payment, but there is an abstract and Green Car Congress has some more details. The gist is that, "with increasing ethanol content in the fuel, the tailpipe emissions of ethanol, acetaldehyde, formaldehyde, methane, and ammonia increased." At least NOx and NMHC emissions decreased. The researchers say that the effects are due to the fuel and "are expected for all FFVs," but that the way that a manufacturer calibrates the engine will affect NOx, THC, and NMOG emissions. It's this last bit that's important, since the researchers found, "Higher ethanol content in gasoline affects several fundamental fuel properties that can impact emissions. ... These changes can have positive or negative effects that can depend on engine design, hardware, and control strategy. In addition to direct emissions impacts, higher ethanol content fuel can also provide more efficient combustion and overall engine operation under part-load conditions and under knock-limited higher-load conditions." So, as we head towards more ethanol in our fuel supply (maybe), manufacturers are going to need to learn how to burn it most efficiently.

Auto industry insider previews tell-all book, What Did Jesus Drive?

"It's about some of the biggest crises in history. It's about who did it right and who did it wrong." - Jason Vines
Jason Vines, the former head of public relations at Chrysler, Ford and Nissan, has seen a lot during his more than 30-year career, and now he's offering a behind-the-scenes look at the auto industry in his tell-all book What Did Jesus Drive? that went on sale this month.

Ford sued over alleged 3.5-liter EcoBoost defects

Three Ford owners from Ohio have filed a lawsuit against the automaker over defects that they allege exist within the company's twin-turbocharged 3.5-liter V6 EcoBoost engine. Automotive News reports that the lawsuit claims the engine "contained serious latent design, manufacturing, or assembly defects." Those defects, the suit claims, cause the vehicle to shake, misfire and lose power quickly.
Two of the plaintiffs, a married couple, own a 2010 Ford Taurus SHO, and allege they experienced a loss of power and stalling, while the third, an F-150 owner, claims he lost power while accelerating. In addition to the Taurus SHO and F-150, the 3.5-liter V6 EcoBoost engine is also available in the Ford Flex, Explorer Sport and Lincoln MKT and MKS. Other three- and four-cylinder EcoBoost engines are not included in the suit. There have been no recalls associated with 3.5-liter V6 engine, and the National Highway Traffic Safety Administration is currently not investigating the matter.
The plaintiffs, however, claim Ford has known about the problem, citing several technical service bulletins issued to dealers of the F-150 that suggest possible fixes. Ford had no comment for Automotive News, saying that it's yet to review the lawsuit, which was filed last Friday in Columbus, OH.