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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.

Latest Forza Horizon 3 car pack features a Skyline and a fast Swedish wagon

The steady stream of Forza Horizon 3 car packs shows no signs of slowing down, and the latest Rockstar Energy Drink pack includes enthusiast favorites such as the R31 Skyline and the Volvo V60 Polestar. The car pack also features a couple of sporty two-doors and some off-road oriented machines. Luxury-minded players will be pleased to see both the Bentley Bentayga and BMW i8 make an appearance. People more concerned with ultimate performance will have a different pair to consider. Players will want to check out the Ford trophy truck for busting dunes, and the Radical RXC Turbo for race-car levels of pavement performance. Finally, yet another classic Aussie muscle car appears in the pack: the 1972 Ford Falcon XA GT-HO. For those interested in the new rides, this car pack is included in the Forza Horizon 3 Car Pass, or can be purchased on its own. If only one or two vehicles are must-haves, it's also possible to purchase the cars individually. Related Video: Related Gallery Forza Horizon 3 Rockstar Energy Car Pack Image Credit: Turn10 Studios / Playground Games Toys/Games Bentley BMW Ford Volvo Videos bentley bentayga nissan skyline volvo v60 polestar forza horizon 3

Focus ST diesel variant coming, just don't look for it here

A few years back, Volkswagen made some waves when it announced the Golf GTD - a diesel-powered car that, aside from its ultra-efficient, ultra-torquey engine, was identical to the gas-powered GTI. That meant cosseting sport seats, larger wheels, sportier suspension, larger brakes and a body kit that made the GTD indistinguishable from the GTI, except for the three little letters on the back and in the grille.
Now, Ford is looking to replicate VW's success, with a diesel version of the Focus ST. According to Motor Trend, the diesel-powered ST will use a 2.0-liter, 182-horsepower four-cylinder. With an unspecified amount of torque on offer (we'd guess around 280 pound-feet), the diesel hot hatch should hit 62 miles per hour in about eight seconds.
The report, which originally comes from Auto Express, claims the ST Diesel was confirmed by Ford Chief Marketing Officer Mark Fields during this week's Geneva Motor Show. Not surprisingly, it doesn't appear there are any plans to bring a diesel-powered Focus of any kind to the US, let alone one that uses the suspension, steering and other items from the ST. Of course, if there's an official confirmation from Ford, we'll be sure to report on it.