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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.

Lexus gets top brand marks from Consumer Reports; Ford, Jeep hit hard

Consumer Reports has released its 2014 Car Brand Report Cards, with Lexus again reigning at the top and doing so with the same industry-topping score of 79 that it registered in last year's Report Cards. This year, the institute credited its lineup for being "usually quiet, comfortable, and fuel-efficient," noting it's the only brand on the list "to achieve an excellent average overall reliability score." The Car Brand Report Cars list is meant to rank the best all-around vehicles based on CR testing and reliability results tallied by subscribers it surveyed. Each brand included must have sufficient test and reliability data for at least three models, a standard which left out 11 marques including Fiat, Jaguar, Land Rover and Porsche.
This 2014 Brand Report Cars edition is the first of a new format in which sub-brands have been broken out from their parent brands, with Acura using this year to move up the leaderboard into second place with a score of 75 for its "reliable, well-finished and somewhat sporty models." The top three was rounded out by Audi, climbing from eighth to third by scoring a 74 for "well-crafted interiors, nice handling and good gas mileage." Audi scored highest in the road-test portion, its improved reliability aiding its rise. The top nine was completed by Subaru, Toyota, Mazda, Honda, Infiniti and Mercedes-Benz.
Ford and Jeep weighed in at the other end of the rankings, Jeep taking the lowest overall score in the road tests and hampered by "a mix of spotty reliability." Ford was sunk by reliability issues with its MyFord Touch infotainment system which consumers found troublesome enough to negate its cars earning "solid test scores" for being "very nice to drive." Perhaps the rumored switch from Microsoft to Blackberry's QNX for the next generation SYNC will help them out. Cadillac's score also took a hit for infotainment reasons after it was the leading US brand last year, the CUE system in the XTS dragging Cadillac to the bottom of all General Motors brands.

2015 Ford Mustang prototype spotted on the street

Our trusty spy photographers have snapped the first photos of the 2015 Ford Mustang prototype out on public streets. With nearly every square inch of the machine covered in heavy camouflage, it's difficult to discern details, but we can see smallish horizontal headlamps at work in the coupe's nose. Ford has made it clear that modern lighting technology will allow the company to get away from large, expensive headlamp arrays in the near future, and the 2015 Mustang may very well be the first of the automaker's products to bow with the new tech. The philosophy was first displayed on the very attractive Evos Concept.
The extensive cladding doesn't extend all the way to the prototype's rockers in the instance, giving us a look at the heavily-sculpted sills. Overall, this test car looks considerably smaller than the current generation Mustang, and elements like a short front overhang and beefy dual-piston calipers give us plenty of hope for the future model. Of course, reports that the 2015 Mustang will bow with an independent rear suspension and EcoBoost power certainly don't hurt our feelings, either.