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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.

What an Atlas-based Ford F-150 might look like

Just ahead of January's Detroit Auto Show, surprising rumors pegged Ford as revealing some sort of F-150 concept, perhaps as a hurried effort to deflate some of the buzz building around General Motors' new Chevrolet Silverado and GMC Sierra twins, which were also making their auto show debut. Those rumblings turned out to be true, as Ford rolled into the Motor City with its Atlas concept (inset, right), touting the truck's bold styling as a precursor to the next-generation F-Series.
The show truck featured all kinds of clever details, including active wheel shutters and a front air dam that raised and lowered to improve aerodynamics while preserving off-road ability. It also had a genuinely snarly face. And it's that pugnacious snout that may well be on its way to production. The good folks at TopSpeed have worked up the plausible-looking artist's rendering above by cross-referencing the Atlas concept with what little has been revealed from recent spy shots. The look is toned-down pretty dramatically from the concept truck, but its Atlas roots are clear, with a massive three-bar grille and bracket-shaped headlamps hiding a next-generation EcoBoost engine. In the rendering, the show truck's deeply contoured hood and roofline have been ditched and larger, more traditional side mirrors have been fitted - all likely concessions in the move to production sheetmetal.
While Ford has yet to officially announce when it will unveil the 2015 F-150, all signs point to next year's Detroit Auto Show - one year after the Atlas shrugged off GM's new pickups.

NHTSA and Ford investigating steering issues in Crown Vic, Grand Marquis and Marauder

There may be more steering woes for the Ford Crown Victoria. The National Highway Traffic Safety Administration has opened a preliminary evaluation into the Crown Vic and Mercury Grand Marquis from the 2004 to 2007 model years and the Mercury Marauder for the 2004 and 2005 model years because the steering shaft can jam. The issue could potentially affect an estimated 500,000 vehicles.
According to the regulator, there is a possibility that the driver's side heat shield for the exhaust manifold can rust, dislodge, and then wedge into the steering shaft. If this occurs, it leads to a situation where the driver can no longer control the car.
NHTSA has received five complaints of this happening, including one alleged case with an injury. In that situation, the car was driving onto the highway, lost control and rolled over. One occupant was hurt in the accident.