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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 126,000 Fusions and Milans over wheel separation concern

Ford has announced a recall of certain Ford Fusion and Mercury Milan vehicles after an investigation by the National Highway Traffic Safety Administration. A total of 128,616 2010 and 2011 models equipped with steel wheels may have been manufactured with wheel studs that could crack and split over time. If that happens, the vehicle may experience a wheel separation.
According to The Detroit News, the company is aware of a total of 30 wheel separation incidents, one of which occurred on the front of the vehicle. Even so, no injuries have been reported as a result of the defect.
The problem apparently stems from the fact that the mounting pads on the vehicles' steel wheels may have been faulty from the factory. In addition, the wheel mounting face on rear disc brakes may not have been installed properly. Ford will inspect the rear disc face and replace them as necessary. In addition, the company will replace all of the vehicle's wheel studs free of charge. Head to the NHTSA website for more information, and click past the jump to view the full recall notice.

2015 Ford F-150 to get 2.7-liter EcoBoost?

As we prepare for the arrival of the all-new, next-generation Ford F-150, rumors about the new truck are picking up steam. Naturally, many of said rumors aren't just related to the way the truck will look (it's expected to take design cues from the Atlas concept shown above), they're tied to what's going to motivate the Blue Oval mainstay, with Ford's EcoBoost range likely to play an increasingly key role. While we're still expecting the current 3.5-liter, twin-turbocharged V6 to retain its position as a premium alternative to Ford's naturally aspirated V6 and V8, a Canadian automotive news site is proposing that the Dearborn automaker is also preparing a new, more fuel-efficient downsized EcoBoost option.
Autos.ca is reporting that a new, 2.7-liter, twin-turbocharged V6 could find its way into the lighter, aluminum-intensive truck. The new engine supposedly makes use of asymmetrical turbos to generate 320 horsepower and 370 pound-feet of torque - substantially more impressive numbers than the current 3.7-liter base engine's 302 ponies and 278 lb-ft - while offering improved fuel economy and emissions. The new 2.7 EcoBoost (internally dubbed "Nano") isn't expected to supplant the naturally aspirated V6 as the F-150's base engine, it's expected to slot in above directly it.
Naturally, we're prescribing more than a few grains of salt to go with these rumors, at least until Ford debuts the next F-150 at the 2014 Detroit Auto Show, a reveal we'll be covering in a mere two weeks.