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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.

Watch as an out-of-control car demolishes gas pump

A Baltimore area man was fighting for his life Tuesday after crashing his car into a gas station. According to WBAL, the unidentified 64-year-old lost control of his vehicle for unknown reasons around 4:55 a.m. May 1 in Parkville, Md. The 2007 Mercury Milan careened downhill, ramped over a curb, and smashed full-speed into a gas station pump. The car then flipped and came to rest against one of the station's canopy support pillars. Don Karbowniczek, owner of a service station across the street, told WBAL he was shocked there wasn't more damage. It's also surprising that the car even made it to the pumps, as it had to thread past a coin-op vacuum machine, the station's sign, a utility pole, and a traffic light pole. "It came right through, took some of our bushes out, just trimmed them for us, and how it got through and flip the way it did, I don't know. From what I see on the marks, it had to go airborne and just come down on the pump," Karbowniczek said. Thankfully there was no fire or explosion. Gas pumps have shear valves - safety devices that immediately cut the flow of gasoline when a pump is damaged. The driver was rushed to a hospital with life-threatening injuries, and was in critical condition. Police theorized the driver may have become stricken with a health issue when he lost control. Related Video: News Source: WBAL Auto News Mercury maryland gas station

Petrolicious shows Mercedes 280SL as architecture in motion

While still an absolute beauty today, the design of the pagoda-roof W113 Mercedes-Benz SL was revolutionary when it debuted. Moving away from the soft curves of the previous SL models, the all-new generation brought an upright, angular shape that was as much architectural as automotive. In the latest video from Petrolicious, owner and architect Daniel Monti expounds on the inspiration that he gets from his 1969 280SL's fantastic styling. The roof is the most famous design feature of this generation of SL. Look at the top from the front or back, and you can see a gentle, downward arc that evokes the look of a pagoda. That one styling element is also a fabulous counterpoint to a vehicle that is largely more angular than curvaceous. Petrolicious wonderfully illustrates how some of the SL's form-follows-function design aesthetic can be found in the architect's work in this video's heaping helping of mid-century modern goodness.