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The tricky business of octane, power, and MPG

Given tepid green-car sales numbers this year, consumers in the US aren't making the transition away from internal combustion engines too quickly. Regulations are still mandating cleaner emissions, though. In addition to downsizing and turbocharging, there's growing consideration about moving to higher-octane fuel to improve overall efficiency. In a new report, engineers at FCA, Ford and General Motors Powertrain are showing that it could work, too. The major advantage to higher-octane fuel is that it supports higher compression ratios. That in turn can lead to more power from burning the same amount of gas. "Higher ethanol content is one available option for increasing the octane ratings of gasoline and would provide additional engine efficiency benefits for part and full load operation," the researchers write in the study's abstract. The authors even think it could be possible to update some modern vehicles' engine calibration to be optimized for the better gas. While the benefits are there, we still have a long way to go before higher-octane fuel becomes a national standard. According to Green Car Congress, 87 percent of the gas sold in the US is regular grade 87-octane. Meanwhile, premium 91-93 octane makes up just 10 percent. The various grades of fuel illuminate even more annoyances with the current system. For example, Ford generally recommends 93-octane for EcoBoost engines, and the power outputs that the company publishes are based on using it. However according to Green Car Reports, such premium gas is very difficult to find in some regions of the US, especially along the West Coast. The powertrains still run on lesser grades but with lower power output. The researchers' discussion of possibly increasing ethanol in gas also comes during a heated debate on the substance. The current administration is pushing for less of the corn-based fuel in the coming years. Although, several presidential hopefuls might be favor of reversing that course.

Bomb threat closes Ford Romeo Engine Plant [UPDATE]

UPDATE: Ford has released the following statement about what's happening at the factory: "The Ford Romeo Engine Plant was reopened at 12:47 PM after law enforcement investigated and cleared the site. The afternoon and evening shifts are expected to report at their usual start times. Further questions on the investigation by law enforcement can be directed to the Romeo Police Department." Due to a bomb threat, Ford has evacuated its Romeo Engine Plant, and law enforcement is on the scene. According to the Detroit News, police with bomb-sniffing dogs are searching the building, which covers over 2 million square feet. Ford spokesperson Mike Moran wouldn't disclose to Autoblog how the threat was received but said that it came in between 7:00 a.m. and 7:30 a.m. Eastern on July 30. "The day shift was sent home," he said. According to the Detroit News, the second shift was also asked not to come in. About 500 people work at the plant, Moran indicated. At this time, Moran said that there hadn't yet been an update from law enforcement whether anything had been found in their search. The Romeo Police Department confirms to Autoblog that it's handling the investigation. However, the authorities wouldn't comment further about what is happening at the plant at this time. Related Video:

Ford issues four recalls covering 163k vehicles

Recalls! 2014 will be forever remembered as the year that automakers went recall crazy, with millions and millions of vehicles adding up to crush previous recall records well before the end of the year. Adding to that tally is Ford, which announced a call-back for 163,000 vehicles.
Leading that charge are the 2.0-liter, EcoBoost four-cylinder engines of the Ford Focus ST and Ford Escape. 160,000 of the 2013 and 2014 models have bad wiring harnesses that can disrupt the signals traveling to the powertrain control module. That, in turn, could lead to a check engine light, reduced power and stalling. Notably, Ford hasn't recalled any other vehicles that feature the 2.0 EcoBoost, such as the Fusion, Taurus or Explorer.
While the Focus ST and Escape constitute the vast majority of recalled vehicles, they aren't the only problem children in the Ford family. 1,300 Transit passenger vans from model year 2015 were recalled due to brake fluid leaks, while another 600 Transit cargo variants were recalled after Ford discovered the windowless sliding doors could come open in the event of a side-impact crash. Dealers will replace the sealing washers on the passenger variants and add a reinforcement plate on the cargo models, The Detroit News reports.