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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.

Submit your questions for Autoblog Podcast #321 LIVE!

We're set to record Autoblog Podcast #321 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #321
Unibody Ford Ranger replacement

Autoblog Minute: Ford Ranger, UK Mustang, Hyundai Hybrid

Ford may bring the Ranger back to the US, the UK goes nuts over the Mustang, and the battle of hybrids heats up with spy shots of the Toyota Prius and a new Hyundai. Autoblog's senior editor Greg Migliore reports on the weekly recap edition of Autoblog Minute. Show full video transcript text [00:00:00] Ford may bring the Ranger back to the US, the UK goes nuts over Mustang, and the battle of hybrids heats up with spy shots of Prius and a new Hyundai. I'm Autoblog senior editor Greg Migliore and this is your Autoblog Minute weekly recap. 2011 was the last time we saw Ford's midsize pickup in the US but according to a report from the Detroit News we could see production of the Ranger at the [00:00:30] Dearborn automaker's Michigan Assembly Plant as early as 2018. Ranger could compete with the Chevy Colorado and perhaps revive the compact and midsize pickup market for Ford, but the future of Ranger in the US depends a lot on Ford's ongoing negotiations with the UAW. About 2,000 orders for the 2015 Mustang were placed in the UK, tying up production of the pony car until July 2016. According to details in a press release from Ford UK, [00:01:00] it looks like Brits are a lot like their American cousins, opting for the 5.0 liter V8, with Race Red as the popular color of choice. Photos of the 2016 Toyota Prius leaked generating a lot of buzz over the styling. This fourth generation Prius will have some new competition as spy shots of a new Hyundai also surfaced this week. The car is said to be a hybrid and a bonafide "Prius fighter." Those are the highlights from the week that was. Be sure to check out my full recap this Saturday, [00:01:30] including the latest in FCA rumors for 2016. For Autoblog, I'm Greg Migliore. Autoblog Minute is a short-form video news series reporting on all things automotive. Each segment offers a quick and clear picture of what's happening in the automotive industry from the perspective of Autoblog's expert editorial staff, auto executives, and industry professionals. UAW/Unions Ford GMC Hyundai Toyota Truck Hybrid Autoblog Minute Videos Original Video