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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 recalling select Taurus, Explorer and Lincoln MKS models over fuel tanks

Ford is recalling certain 2012 Taurus, 2013 Explorer and 2012 Lincoln MKS models over fuel tank concerns. According to the National Highway Traffic Safety Administration, vehicles built between July 19, 2011 and March 15, 2012 may have been built with fuel tanks that have a "marginally sealed seam" on the side. Those seams may not provide the strength necessary to protect the tank from rupture during a collision. They may also leak. The recall covers a total of 3,037 vehicles. NHTSA says that leaked fuel, in the presence of an ignition source, could easily cause a fire.
Dealers will inspect the tanks and replace them as need be free of charge. Owners can expect to be notified once the campaign begins on or around April 22, 2013. You can read the full NHTSA recall notice below for more information.

NHTSA probes 2014 Ford Edge Sport 22-inch alloy wheels

The National Highway Traffic Safety Administration is opening a preliminary evaluation into the 2014 Ford Edge Sport for the possibility its 22-inch wheels could break while on the road. This affects an estimated 20,000 examples of the crossover, according to NHTSA. The case that instigated this evaluation was submitted to NHTSA in November 2014. The driver reported that the front, right corner of the vehicle suddenly dipped, and the Edge went into a field. No one was harmed, but upon investigation, the wheel had broken into two pieces, according to The Detroit News. When this happened, this crossover had been driven an estimated 8,500 miles. NHTSA's preliminary evaluations are meant "to assess the scope, frequency, and safety-related consequences of the alleged defect in the subject vehicles." If a problem is discovered during the investigation, this process can lead to a recall. Ford spokesperson Kelli Felker told Autoblog, "We will cooperate with NHTSA on this investigation, as we always do." INVESTIGATION Subject : Wheel Separation Date Investigation Opened: MAY 20, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15020 Component(s): WHEELS All Products Associated with this Investigation Vehicle Make Model Model Year(s) FORD EDGE 2014 Details Manufacturer: Ford Motor Company SUMMARY: On November 29, 2014, ODI received a complaint (ODI No. 10661278) reporting the sudden failure of an original equipment 22-inch alloy wheel rim that failed on a model year 2014 Ford Edge. The right-front corner of the vehicle suddenly dropped while driving, causing the vehicle to drive off the road and into a field. The right-front wheel rim was found to have broken into two pieces. The owner said that there was no prior warning or wheel related problems with the vehicle. The vehicle had been driven approximately 8,500 miles at the time of the incident. A preliminary evaluation has been opened to assess the scope, frequency and safety-related consequences of the alleged defect in the subject vehicles. Related Video: