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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

Shelby GT500 and Roush Stage 3 go head to head at the drag strip

The Ford Mustang is a brilliantly affordable source of horsepower, with a base 300-plus-horsepower version available for well under $30,000. Jumping up to about $35,000 will get you a solid 420 horsepower from a high-revving V8, while those with some extra disposable income can get a pair of 600-plus-horsepower monsters. Both the Roush Stage 3 with its Phase 3 package and Ford's factory Shelby GT500 even crest the 650-horsepower mark, with 675 and 662 ponies, respectively.
Naturally, someone needed to find out which of these hi-po Mustangs was the quickest. And while this video is quite obviously a dealership commercial, at least there's some solid drag racing between two of the most powerful performance machines available for under $100,000.
With two NHRA drag racers at the wheel, the Stage 3 and GT500 go head to head for three races. Scroll down below to see the results in the full video.

Monterey Car Week recap, 2025 Lincoln Navigator and more | Autoblog Podcast #845

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor Jeremy Korzeniewski. They look back on Monterey Car Week, and pick their favorite highlights from the event, including the new Lincoln Navigator, the Ruf Rodeo, Cadillac Opulent Velocity concept and more. In the news, Ford has abandoned its three-row EV in a pivot to hybrid. Our hosts review recent cars in the fleet, like the Mercedes GLC Coupe, long-term Mazda CX-90 and the three-wheel Can-Am Ryker. They also compare the Jeep Gladiator with the Wrangler. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #845 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Monterey Car Week recap 2025 Lincoln Navigator Ruf Rodeo Cadillac Opulent Velocity concept Lamborghini Temerario Porsche 911 Turbo 50 Years Ford-Ghia Probe I prototype burns to a crisp Ford cancels electric three-row SUV, pivots to hybrid Cars we're driving 2024 Mercedes-Benz GLC 300 Coupe 2024 Mazda CX-90 PHEV long-term update 2025 Can-Am Ryker 2024 Jeep Gladiator vs. Wrangler Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related Video:  Corvette ZR1, Honda Civic Type R and Mercedes-AMG SL 63 | Autoblog Podcast 843 This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.