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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.

Ford board OK with Mulally stepping down earlier

Ford's board is open to CEO Alan Mulally stepping down before his planned departure in 2014, inside sources are telling Reuters. Ford's plan of succession, aside from who would be his actual successor, has been something approaching common knowledge - the 68-year-old former Boeing exec had plans to stay through 2014. This was recently confirmed by Mulally himself on Bloomberg Television and in Automotive News.
Motivation for the about-face comes from what Reuters calls a "growing confidence" in the current crop of Ford execs, led by Mark Fields. Fields, Ford's current chief operating officer, has been tipped as Mulally's ultimate successor, although he's far from the only person with eyes on Ford's top job. Normally, Ford's board saying they're open to an executive, that's done very well for the company, stepping down early would be nearly unremarkable. It's the timing of this announcement, though, that makes this a big piece of news.
Recently, Mulally has been the subject of rumors that he's interested in taking the CEO position at tech giant Microsoft. The Redmond, Washington-based company's CEO, Steve Ballmer, told the media in August that he'd be retiring in a year's time. The fires were stoked when tech website AllThingsD speculated that Mulally would take the top spot, despite denials from the man himself. Could Ford's current boss become the new top dog at Microsoft? Will Mark Fields replace him? Could recently departed Renault exec Carlos Tavares land at Ford in some capacity? Let us know what you think below in Comments.

NHTSA closes Ford F-Series Super Duty steering probe without recall

The National Highway Traffic Safety Administration's investigation into 2008 Ford F-250 and F-350 Super Duty pickups, which was originally opened last year, has now ended without a recall. NHTSA was looking into steering failures on some 336,000 trucks.
The issue rested with the steering gear - NHTSA received five complaints of failures - which was redesigned in 2005. According to the report on the matter, investigators "found evidence of broken sector shaft gear teeth and piston damage consistent with incidents of single event overload."
NHTSA investigators, however, "found no evidence of fatigue or material property defects in any of the fractures. Analysis of complaint rates by vehicle build month showed no patterns indicating potential manufacturing quality issues and no difference before and after Ford introduced design changes to the input shaft and sector shaft seals in July 2007 to address potential leak concerns," according to the report, obtained by The Detroit News.