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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.

2016 Ford Explorer revealed with new 2.3-liter EcoBoost

A 2.3L EcoBoost four-cylinder takes over where the old 2.0 left off, making 270 hp and 300 lb-ft.
Right now, around 23 percent of all Ford vehicles sold in the United States is a utility vehicle. By 2020, Ford expects that figure to increase all the way to 29 percent. Put simply, SUVs and crossovers are very big business at Ford. So, when it comes time to update the Explorer, Ford's original sport utility vehicle, you can be sure that a whole heck of a lot of effort goes into the process.

Top Gear season 25 opens with a V8 roadtrip through America

Great news for fans of BBC Top Gear: the first episode of season 25 is here. Viewers of BBC America will catch the season opener on March 3, and for the American audience this episode is definitely suitable watching. The episode has been dedicated to V8 sportscars almost in its entirety, as it's been wrapped around a Western roadtrip with a motorsport bias. The three hosts get to choose three V8 sports cars, with the basic idea of finding the best all-rounder. Matt LeBlanc goes for a Hennessey-tuned GT350R, Rory Reid chooses a Jaguar F-Type SVR, and Chris Harris shakes up the pack by selecting a McLaren 570GT. It's a nicely varied trio, with V8 power still showing what it's good for. There are various challenges along the way, just like there should be on a Top Gear roadtrip episode – even if the road surface itself isn't always ideal. But things smoothen out, all the way to a NASCAR oval and an airport runway; the flooded Bonneville salt flats aren't suitable for shenanigans, so substitutes have to be found. The trio also hit dirt roads, and have to evade a buggy-driving Ken Block during a "moonshine run to the border." Fans of Sabine Schmitz will be pleased to find her piloting a chain car racer, which consists of two American junk cars with a Honda CRX chained in the middle. It must make sense to someone. The Star In A Reasonably Priced Car segment has been retained for this season. This time it's the British actor Rob Brydon driving the Toyota GT86, on a very wet lap around the show's Dunsfold Aerodrome track that must be a cult classic by now. All in all, the season 25 opener is exactly what it says on the tin. There's nothing out of the ordinary, but it still has excellent cinematography, V8 roar and some nice landscapes. Classic Top Gear. Cowboy duels, Sabine Schmitz chain car racing, @RobBrydon, a @kblock43 car chase and #TheStig The latest episode of #TopGear is available on @BBCiPlayer now. Outside the UK? See local listings here: https://t.co/HPPhbUErDu pic.twitter.com/87F53C8oYb — Top Gear (@BBC_TopGear) February 26, 2018 Related Video: