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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.

GM also sheds parts from its pickups to boost payload ratings

The row between Ford and Ram over who boasts the best-in-class tow rating for heavy duty pickups has revealed a number of things. Chief among them is a report that Ford removes items like the spare tire, jack, radio and center console from its vehicles in a bid to lower its base curb weight and therefore keep the truck's gross vehicle weight rating down.
For those that need a refresher, GVWR is the vehicle's curb weight plus its maximum payload. A lower GVWR allows Ford to station its F-450 among the so-called Class III pickups, despite the fact that internally, it has the makings of a more brutish Class IV truck.
Ford explains away these deletions, saying a customer could order their vehicle in such a manner. It has also come to light that Ford is not the only automaker to engage in such practices.

Performance CNG wants to crowdfund natural gas-powered Ford Mustang

Soliciting investments to develop a street-legal compressed natural gas (CNG) powered Ford Mustang that can deliver 470 horsepower certainly wouldn't make sense on a site called Indiestopstop. Nope, Indiegogo is the more-appropriately-named site that one Michigan entrepreneur is using to try and crowdfund his CNG 'Stang. He's looking to raise $55,000. Michigan's Daryl Patrishkoff and his company Performance CNG LLC showed off their converted 2003 Mustang last year at the Woodward Dream Cruise in Royal Oak, MI in an effort to get some exposure for the car, which can run on both gas and CNG. The company and its three-man team is looking to further develop the project in the name of a fueling source that is 40 percent cheaper than gasoline, throws off as much as 30 percent fewer tailpipe greenhouse gas emissions and makes the country less dependent on foreign oil. Performance CNG estimates that just 120,000 of the world's 15 million CNG-powered vehicles are in the US and is calling for more. As for the $55 grand, Patrishkoff estimates that more than half of that amount would be committed to the Environmental Protection Agency (EPA) testing of emissions, fuel economy and horsepower. The problem? As of right now, only $150 has been raised. Check out Performance CNG's press release below and see the fundraising effort on Indiegogo here. Eco-Friendly Muscle Car? CNG vehicles save money, emit less pollution and creates jobs from American-mined fuel SHELBY TOWNSHIP, Mich., May 5, 2014 /PRNewswire/ -- Daryl Patrishkoff of Shelby Township, MI, has a vision for the American automotive industry. He firmly believes that our fuel of choice should be Compressed Natural Gas (CNG), not gasoline. Until the full CNG infrastructure is in place a Bi-Fuel vehicle, fueled by either CNG or gasoline upon the drivers command, is the bridge vehicle that can lead this transition. Patrishkoff heads up a (3) man technical team developing this technology. The advantages are: 40 percent savings in fuel costs at the pump 25-30 percent reduction in harmful emissions 100 percent US provided natural gas Meaningful employment for the US economy The most important benefit, however, is that a CNG-powered vehicle runs on fuel that can be mined in America, eliminating the need for foreign oil. "After decades of political rhetoric, these types of vehicles can truly lead the US to energy independence," he said.