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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.

Chevy Blazer and Easter Jeeps | Autoblog Podcast #576

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and Assistant Editor Zac Palmer. They do a rundown of the latest news, including rumors of the Toyota Tundra and Tacoma sharing a platform, Jeep's insane Easter Safari concepts and an upcoming "entry level" performance Ford Mustang. Then they talk about driving the new Chevrolet Blazer and Jeep Grand Cherokee Trailhawk, and compare driving the Genesis G70 to the Kia Stinger. Finally, they take to Reddit to spend someone's money on a new crossover. Autoblog Podcast #576 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Toyota Tacoma and Tundra to share a platform? Jeep Easter Safari concepts "Entry level" performance Mustang? Cars we're driving: 2019 Chevy Blazer 2019 Jeep Grand Cherokee Trailhawk 2019 Genesis G70 Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

Ford recalling 12,300 2015 F-150 pickups

Ford is recalling 12,300 of its new 2015 F-150 pickup trucks in North America. According to the automaker, an upper l-shaft may have been riveted improperly on these trucks, which can cause it to separate. If that happens, drivers may lose steering control without warning. Yikes. The affected trucks were built at Ford's Kansas City Assembly Plant between March 21 and 25, as well as the Dearborn Truck Plant between March 21 and 30. There are 12,328 total trucks included in this recall – 8,963 in the United States, 3,348 in Canada, and 17 in Mexico. Only 5,606 of the trucks are in customers' hands, the rest have yet to be sold. Ford is not aware of any accidents or injuries related to this problem, but knows of one incident where steering control was lost, and believes it to be related to this issue. Scroll down for Ford's official statement. Related Video: FORD ISSUES SAFETY RECALL FOR CERTAIN 2015 FORD F-150 VEHICLES IN NORTH AMERICA FOR UPPER I-SHAFT RIVET ISSUE Ford Motor Company is issuing a safety recall for approximately 12,300 2015-model Ford F-150 vehicles in North America for an upper I-shaft that might have been riveted improperly, potentially causing it to separate. If that happens, it could result in the loss of steering control without warning, increasing the risk of a crash. Ford is not aware of any accidents or injuries, but is aware of one report of loss of steering believed to be related to this condition. Affected vehicles include certain 2015 F-150 vehicles built at Kansas City Assembly Plant from March 19, 2015 to March 21, 2015 and certain 2015 F-150 vehicles built at Dearborn Truck Plant from March 21, 2015 to March 30, 2015. There are 12,328 vehicles that might be affected in North America, including 8,963 in the United States and federalized territories, 3,348 in Canada and 17 in Mexico. Of those, 6,722 vehicles are unsold, meaning 5,606 vehicles are in customer's hands. Dealers will inspect the upper I-shaft assembly and replace it if necessary at no cost to the customer.