2005 Ford Explorer Xlt Sport Sport Utility 4-door 4.0l on 2040-cars

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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.

Roush getting back into sport compact business with Focus ST mods [w/video]

Roush Performance offers a whole raft of parts for folks looking to tune their Ford Mustang and F-150 models, and now Focus owners can start getting in on the hotted-up action, too. Owners of the 2012-13 Focus and 2013 Focus ST can now get a Roush cold-air intake system, and ST owners can also opt for a high-performance cat-back exhaust.
Although all of these components are now available for order, the parts will ship sometime in July; no word yet on pricing. Down the road, Roush will also offer styling upgrades for the Focus as well as performance tuning upgrades such as engine controller, suspension, wheels and tires. Scroll down for a quick video of what the Focus ST exhaust sounds like, as well as a Roush press release.

Guess which brand's not on a top 10 list of best EVs (hint: it's Tesla)

Few surprises lurk in Autotrader’s list of its 10 best electric vehicles of 2023, but there is one that stands out: no Teslas. There's Hyundais and Kias, Porsches and Fords, a BMW and a Nissan. But Â… no Teslas. Although many of us admit to being over-Musked and tired of reading about him, the lack of a Tesla model on a selection of the 10 most desirable current EVs is conspicuous by its absence. Asked about this particular omission, we received this rather vague response from Autotrader spokesperson Brenna Buehler at Cox Automotive: “Tesla models were included in consideration but didnÂ’t get sufficiently high scores by the Editorial team to qualify for the top 10.” At least some Tesla offerings appeared to meet all the requirements set by the website. The manufacturers must offer 2023 model year vehicles, and they have to be sold in at least 15 states. Check. Only pure EVs were allowed on the list; there are no hybrids, plug-in hybrids or hydrogen fuel-cell vehicles. Check. The base manufacturer's suggested retail price must be less than $100,000. Check. Let the debates begin. Moving on, it should be noted that two Genesis models, a G80 sedan and GV 60 SUV, are listed, along with a Lucid Air midsize sedan, the Rivian R1T pickup, and the Porsche Taycan. Here is the full list, with the remarks and comments from Autotrader's raters. (And we've included links to Autoblog's own reviews for a deeper dive). The EVs are listed in alphabetical order by brand, so don't read anything into the order of presentation: 2023 BMW i4 BMW reboots its EV approach and comes up with a winner: Whatever you thought of BMW's first run at EV, the i3, it was missing a certain something – it didn't look or perform like a BMW. The 2023 BMW i4 corrects course with a Gran Coupe that our editors agree looks and drives like a BMW. 2023 Ford F-150 Lightning Ford's electric pickup gathers steam in its second year: The F-150 Lightning somehow synthesized decades of pickup truck knowledge with the latest and greatest EV technology and infused thoughtful details and user-friendly features. 2023 Genesis Electrified G80South Korea's luxury brand shows how to elevate the executive EV sedan without breaking the bank: Genesis, Hyundai's luxury offshoot, rethought the gasoline-powered luxury sedan, the G80, and developed the 2023 Genesis Electrified G80. Precisely as the name hints, the Electrified G80 replaces the G80's engine with an all-wheel-drive EV powertrain.