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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 builds USAF Thunderbirds Edition Mustang for charity

Each year since 2008, Ford has created a one-off Mustang to celebrate military aviation, and the cars have been auctioned off at the Experimental Aircraft Association (EAA) Gathering of Eagles charity event to raise money to inspire the next generation of aviators. This year's charity car is the 2014 Ford Mustang GT US Air Force Thunderbirds Edition, which also helps celebrate 60 years of Thunderbirds air show excellence.
Of all the EAA charity cars, this Thunderbirds Edition is the most in depth. Painted to match the F-16 Tomcat fighter jets used by Thunderbirds, this Mustang also gets a widebody kit and 22-inch Forgiato wheels to go with the cockpit's Recaro bucket seats, rear-seat delete and modified navigation screen and gauge cluster. Even the Mustang's projector puddle lights have been changed to show an aircraft silhouette - rather than the Mustang's galloping horse logo - when the doors are open.
Themes for previous EAA charity cars include the Blue Angels, SR-71 Blackbird and the Red Tails as well as the F-22 Raptor-inspired AV8R and AV-X10 "Dearborn Doll" models. Scroll down for the press release for the 2014 Ford Mustang GT US Air Force Thunderbirds Edition, and be sure to check out our galleries for all six aviation-themed Mustangs.

NHTSA closes Ford F-150 EcoBoost acceleration probe

Typically when we report on the findings of an investigation from the National Highway Traffic Safety Administration, it's because the government body has discovered a safety issue and prescribed a recall. In this case, however, NHTSA has closed an investigation into a reported performance deficit without ever getting to the recall stage.
The issue revolves around the Ford F-150 - specifically those equipped with the 3.5-liter EcoBoost engine - of which some 360,000 were built in the 2011, 2012 and 2013 model years. After receiving an initial 95 complaints, NHTSA opened an investigation last May - almost a year ago - into the reported issue of reduced engine power under hard acceleration. The agency has since received a total of 525 such complaints, and Ford itself reported receiving over 4,000.
Together, NHTSA and Ford determined that the problem resulted from cylinders misfiring, an issue itself stemming from water getting into the charge air cooler (CAC) mated to the turbochargers. In particularly humid or rainy conditions, water was found to get into the CAC, causing some of the cylinders to misfire, which in turn triggered the ECU to disable those cylinders in order to protect the catalytic converter from damage.