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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.

2022 Ford Maverick and GMC Hummer EV driven | Autoblog Podcast #699

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Autoblog Green, John Beltz Snyder. John is fresh off the 2022 Ford Maverick first drive, and Greg got behind the wheel of the GMC Hummer EV at GM's Milford Proving Grounds. John also just spent a week living the fast life in the Audi RS E-Tron GT. They muse about thee Lamborghini Countach, both old and new, particularly a reboot of the 1971 Lamborghini Countach LP prototype 500. Finally, they reach into the mailbag to help a listener decide whether or not to replace a 2002 Mercedes-Benz E 320 wagon with an all-wheel drive electric crossover. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #699 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown What we're driving:2022 Ford Maverick 2022 GMC Hummer EV 2022 Audi RS E-Tron GT 1971 Lamborghini Countach LP prototype 500 lives again Spend My Money: Keep a 2002 E 320 Wagon or buy a new AWD EV? Full Transcript Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related Video: 2022 GMC Hummer EV Edition 1 first drive

2018 wrap-up, Ford Ranger and Mercedes A-Class | Autoblog Podcast #566

In the final Autoblog Podcast of 2018, Editor-in-Chief Greg Migliore is joined by Senior Editor Alex Kierstein and Associate Editor Reese Counts. They kick off the conversation by talking about a couple of hot new vehicles: the Ford Ranger and Mercedes-Benz A 220 4Matic. Then they round up the biggest stories of 2018 before helping a listener choose a new car in the "Spend My Money" segment. Thanks for listening, and happy holidays. The Autoblog Podcast will be back next year. Autoblog Podcast #566 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 Driving the 2019 Ford Ranger Driving the 2019 Mercedes-Benz A-Class 2018 news roundup The ups and downs of Tesla and Elon Musk Losing Sergio Marchionne and the arrest of Carlos Ghosn Lots of layoffs Trump and tariffs Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: