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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.

Apollo Edition Mustang is a moonshot for charity

By putting a man on the moon, the Apollo Program stands as one of the greatest engineering achievements in human history. Ford is paying tribute to that massive triumph with the company's latest one-off Mustang for the charity auction at EAA AirVenure in Oshkosh, WI, on July 23. This Apollo Edition 'Stang is probably never leaving Earth's atmosphere, but it's going to shoot like a rocket down the road. The Apollo Edition starts as a 2015 Mustang GT, but project manager Melvin Betancourt from Ford Design comprehensively overhauls the pony car. The exterior is finished in a handsome mix of black and white, and the coupe also shows off some serious patriotism with the Stars and Stripes adorning the outside. In an especially clever touch, orange LEDs underneath are meant to make the bottom look like its heating up under re-entry. Inside, the leather upholstery gets upgraded with embroidery inspired by the Apollo Program. Whether trying to launch into space or go quicker through the quarter mile, weight is the enemy, and power is crucial. The Apollo Edition boasts carbon fiber parts for the rear diffuser, side sills, and some trim. The 5.0-liter V8 also gets a Ford Performance supercharger to take output to 627 horsepower and 540 pound-feet of torque. A set of six-piston Brembo calipers should help slow this rocket down, and 21-inch custom wheels add some style. "With this year's stunning Apollo Edition Mustang, we salute that spirit of American ingenuity with the quintessential American automobile – Ford Mustang." Edsel B. Ford II said in the special model's announcement. The coupe is the Blue Oval's eighth charity car to support the Experimental Aircraft Association. The seven before it have raised nearly $3 million for the group's work to get young people interested in flying. Related Video: FORD ANNOUNCES APOLLO EDITION MUSTANG TO CELEBRATE INNOVATION AND INSPIRATION OF APOLLO MISSIONS U.S. Apollo spaceflight program inspires one-of-a-kind 2015 Ford Mustang to be donated and sold at charity auction July 23 at EAA AirVenture in Oshkosh, Wisconsin Donation and sale will benefit EAA youth aviation education programs, including Young Eagles Unique Ford vehicles have raised nearly $3 million for EAA youth aviation programs, including Young Eagles As far as special edition Mustangs go, this one is out of this world.

Shelby Baja 700 takes Ford F-150 SVT Raptor to the next level

The Ford F-150 SVT Raptor can be called many things, but "underpowered" is not one of them. Still, that's never going to deter a company like Shelby from taking the off-road monster even further. Pictured here is the Baja 700, an even more extreme take on the Blue Oval's outgoing performance off-roader. The legendary Ford tuner has fitted it with a new supercharger, throttle body, injectors, heat exchanger and Borla exhaust, boosting output to over 700 horsepower. Of course Carroll's boys didn't stop there, thoroughly reworking the suspension with 3-inch King coilovers, bypass rear shocks, Rogue Racing upper and lower control arms and more, fitted to 18-inch matte black wheels with BFGoodrich K02 off-road rubber. Naturally, it's got the requisite graphics and badging to go with it all, along with a skid plate and a reworked interior by Katzkin and a three-gauge dashboard pod. Only 50 examples will be made, each priced at $45,000 – over and above the price of the base vehicle, which sells for about the same. So you're looking at a good $90k for this monster truck, before auxiliary lighting and other options are taken into account. Related Video: