1958 Ford Ranchero on 2040-cars

Auto blog

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.

Aluminum Ford F-150 earns five-star crash rating [w/video]

The scores are in, and the 2015 Ford F-150 has been awarded a five-star Overall Vehicle Score in the National Highway Traffic Safety Administration's testing. That makes it, according to Ford, the safest F-150 ever. "The five-star safety rating is a terrific example of One Ford collaboration and innovation," Vice President of Global Product Development Raj Nair said in a statement. "Our truck team worked together for years to deliver this accomplishment, using an unprecedented combination of advanced materials throughout the all-new F-150. The 2015 model is engineered to be the safest F-150 ever, which matters to customers who depend on this truck to not only get the job done, but also get them safely home." The new F-150's aluminum and high-strength-steel construction posed some unique challenges to truck's engineers. "The team had to invent new ways to manage crash energy, because advanced materials like high-strength steel behave differently," Matt Niesluchowski, the truck's safety manager. "We found that changing certain shapes led to a weight reduction, while also improving crash performance." Beyond the structural safety features, the 2015 F-150 is loaded with additional safety features, including an adaptive steering column and Ford's inflatable seat belts, that protects drivers in the event of a collision. Beyond that, there's the usual array of active safety features meant to prevent a crash in the first place, including Curve Control and forward collision warning with brake support. Check out Ford's full press release on its five-star score, as well as video on the truck's safety features.

Driving the Lincoln Aviator and flogging Abarths at Laguna Seca | Autoblog Podcast #593

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by West Coast Editor James Riswick and Associate Editor Joel Stocksdale. To begin, Greg takes a moment to remember the fastest woman on four wheels and former host of Autoblog's "The List," Jessi Combs, who died this week. Then our editors turn their attention to the cars they've been driving, including the Lincoln Aviator, Ford Ranger and Nissan Frontier, as well as Joel's recent stint in the Fiat 500 Abarth and Fiat 124 Spider Abarth, including track time at Laguna Seca. Finally, they turn their attention to a listener in Germany who is looking to replace an aging Volkswagen Eos with a newer convertible in this week's "Spend My Money" segment. Autoblog Podcast #593 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Remembering Jessi Combs 2020 Lincoln Aviator and Aviator Grand Touring 2019 Ford Ranger 2019 Nissan Frontier 2019 Fiat 500 Abarth and 124 Spider Abarth at Laguna Seca Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.