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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 announces four recalls, 1.4M vehicles affected

Ford is taking a bit of the spotlight away from General Motors, announcing a major group of recall campaigns, covering a total of 1.4 million vehicles built between 2006 and 2013.
Let's start with the big one, which covers the Ford Escape, Mercury Mariner and, according to The Detroit News, Ford-built Mazda Tribute CUVs. 915,216 vehicles are covered, all of which were built in model years 2008 to 2011. 736,000 vehicles are in the US, while Canada then Mexico make up the vast majority of the remainder. The problem is due to an issue with the torque sensor in the steering column, which could lead to sudden power steering failure. Manual steering would still be available, though.
"Dealers will perform one of three service fixes, depending upon what diagnostic codes are shown when the vehicle is taken to the dealer," Ford spokeswoman Kelli Felker wrote to Autoblog in an email. "They will either update software for the power steering control module and the instrument cluster module; replace the torque sensor; or replace the steering column, which includes upgraded power steering control module software."

CES 2018 brings a buffet of automotive tech — here's a taste

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