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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 C-Max sales hold steady despite fuel economy fracas

Despite the ballyhoo that accompanied Ford's lowering of the C-Max fuel economy figures, the Blue Oval is still seeing strong demand for the five-seat MPV, as Automotive News reports. Speaking to marketing boss Jim Farley, AN says that the controversy surrounding the C-Max's fuel economy figures won't force Ford to change its marketing strategy.
Ford lowered the fuel economy rating of the C-Max after public outcry and legal action by customers that were unable to reach the 47 miles per gallon promised by the window sticker. The new ratings were dropped about a month ago to 45 mpg on the freeway and 40 mpg in the city. Ford offered rebates for current C-Max owners, with $550 going to those that bought their car and $325 to lessees. The issue, says Ford, stemmed from testing standards that allowed the automaker to base the C-Max's fuel economy on the Fusion Hybrid, because they use identical powertrains. The C-Max's less aerodynamic shape wasn't taken into account, though.
Whether Ford's PR team handled the crises perfectly or people just aren't that bothered by a four-mpg drop in combined ratings, demand remains strong for the C-Max among consumers. Ford moved 3,000 units in August, which was a 12-percent jump over July sales. Meanwhile, consumer demand through third-party shopping websites remains strong as well, according to Autometrics, a data analysis company that spoke with Automotive News. While the long-term effects of the adjustments remain unknown, the C-Max appears to have fared well in the near term.

Ford C-Max, Fusion hybrids subject of MPG lawsuit in California

A California lawsuit over the fuel economy claims for the 2013 Ford C-Max was first reported back in December. Based on the numerous reports we've heard of disgruntled owners failing to get their car's EPA fuel economy ratings on the C-Max and 2013 Fusion Hybrid, we suspected there would be more to this story. The Detroit News is reporting that two California law firms are combining their lawsuits against Ford on this matter for "false and misleading" claims.
The article states that there are hundreds of C-Max and Fusion Hybrid owners who have joined the lawsuit, but the issue isn't limited to customers. In December, Consumer Reports extensively tested both the Fusion Hybrid and C-Max and found that both hybrids performed significantly worse than their EPA claims. This all comes just a few months after Hyundai and Kia took the unprecedented step of lowering the fuel economy ratings for all of their 2012 and 2013 model-year vehicles.