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2015 Ford Mustang EcoBoost loses big power on 87 octane

The 2015 Ford Mustang with the 2.3-liter EcoBoost four-cylinder is a pretty potent package on paper. With 310 horsepower and 320 pound-feet of torque, it boasts better performance numbers than the 3.7-liter V6, but with better fuel economy as an added benefit. However, if you're in the market for one of these boosted 'Stangs, you should probably keep in mind that it really prefers to gulp premium, 93-octane fuel. It can drink 87-octane swill in a pinch, but you're going to find significantly less power underfoot when pulling away. While it's not shocking that the ponies are dialed back with a lower grade of gasoline, an alleged page from a Ford training manual obtained by Mustang 6G purports to show just how much power is lost, though. According to this document, the 2.3-liter EcoBoost makes 275 horsepower and 300 pound-feet of torque when running on lower octane fuel. That's a substantial reduction of about 11.3 percent compared to when the engine drinks 93 octane. Interestingly, according to Mustang 6G, that finding was a bit better than expected, because a Ford engineer reportedly said power would be down about 13 percent without altering peak torque. In speaking with Autoblog, Paul Seredynski of Ford powertrain communications, objected to part of this document. While he couldn't confirm the specific losses listed for the Mustang EcoBoost, "torque remains unchanged" with lower octane gasoline, Seredynski said. He speculated this training manual page was "possibly from before the engine was certified" and therefore showed incorrect figures. Serendynski did confirm that the automaker recommends using 93 octane, and like all modern engines, the software adapts if it's lower. "Peak power would be reduced" by using a lesser grade, he confirmed. Featured Gallery 2015 Ford Mustang EcoBoost: First Ride View 20 Photos News Source: Mustang 6GImage Credit: Copyright 2015 AOL, Ford, Mustang 6G Ford Technology Convertible Coupe Performance ecoboost ford mustang ecoboost

Submit your questions for Autoblog Podcast #310 LIVE!

We record Autoblog Podcast #310 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #310
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Report: GM struggling to market turbo technology

In the automotive realm, marketing can sometimes prove just as important as the actual product. Take, for instance, Ford's well regarded EcoBoost technology, which couples turbocharging with direct injection to produce more horsepower and reduce fuel consumption. Would it surprise you to hear that General Motors has had similar technology on the market for over three years?
It's true. GM's first turbocharged, direct injected powerplants hit the market for the 2007 model. The 2.0-liter Ecotec mills put down an impressive 260 horsepower and a matching 260 pound-feet of torque, and they were lauded by the press in the engine bays of the Pontiac Solstice, Saturn Sky, Chevrolet Cobalt SS and Chevrolet HHR SS. But few people outside a core group of enthusiasts actually remember this fact.
Says Uwe Grebe, executive director of GM's global advanced engineering, "We didn't have a badge and say, 'This is the most important thing we will put on all our brochures.'" Ford, however, did just that, and it's EcoBoost engines are right at the tips of all our tongues when we discuss today's most advanced powerplants. So, how does The General fix its mistake?