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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.

Ford recalls 2017 Lincoln Continental for headlight problem

Ford Motor Co. is already recalling the 2017 Lincoln Continental for a headlight problem, the automaker announced Tuesday. The HID headlights may have been assembled with LED lens that don't have the correct lens optics to meet federal visibility requirements for turn signals. Ford says it is unaware of any accidents related to the issue. The company will replace the headlamp assemblies, if needed. The safety compliance recall covers 1,876 Continentals built from June 14 to Sept. 23 at Ford's Flat Rock factory south of Detroit. Most of the cars are in the United States; 49 are in Canada, and one is in a federalized territory. Only about 300 cars are in consumers' hands, a spokesperson said. Customers can use a Lincoln service program where dealers will pick up their Continental, fix it for free, and return it, the spokesperson said. Lincoln has high hopes for the Continental. The flagship sedan uses one of Lincoln's most iconic names and features a luxurious interior, available 400-horsepower V6 engine, and safety features like adaptive cruise control and a 360-degree camera. Lincoln recently announced an elaborate marketing campaign shot by renown photographer Annie Leibovitz to generate interest in the Continental. In a separate recall, Ford also said Tuesday that 60 Edges from the 2015-16 model year are being recalled to update their antilock braking system module. Related Video: Featured Gallery 2017 Lincoln Continental Campaign View 12 Photos Recalls Ford Lincoln

Ford Recalls Nearly 435,000 Vehicles

Ford is recalling nearly 435,000 cars and SUVs to fix rusting frame parts or faulty seats. The biggest of the two recalls covers nearly 386,000 Ford Escapes from the 2001 through 2004 model years. Ford says the subframes can rust, allowing a control arm to separate and hamper steering control. Ford is aware of one crash but no injuries linked to the problem. The SUVs were originally sold or registered in 20 states and Washington, D.C., where salt is used to clear snow and ice from roads. Six Canadian provinces also are included. Dealers will install a reinforcement brace to fix the problem. The Escapes covered by the recall were built from Oct. 22, 1999 through Dec. 19, 2003 at the Kansas City Assembly plant, and from May 1, 2003 through Jan. 23, 2004 at the Ohio Assembly plant, Ford said in a statement issued Monday. They were originally sold or registered in Connecticut, Iowa, Minnesota, Ohio, Wisconsin, Delaware, Maine, Missouri, Pennsylvania, Maryland, New Hampshire, Rhode Island, Illinois, Massachusetts, New Jersey, Vermont, Indiana, Michigan, New York, West Virginia and Washington, D.C. Also covered are Escapes sold or registered in Ontario, Quebec, Prince Edward Island, New Brunswick, Nova Scotia, and Newfoundland & Labrador. The second recall covers 49,000 Ford Fusion, Lincoln MKZ, Ford Escape and C-MAX vehicles from 2013 and 2014. Dealers will replace seat back frames that weren't welded properly. No crashes or injuries have been reported from the problem, Ford said. Recalls Ford