2004 Ford Freestar Sel Mini Passenger Van 4-door 4.2l on 2040-cars

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Aluminum lightweighting does, in fact, save fuel

When the best-selling US truck sheds the equivalent weight of three football fullbacks by shifting to aluminum, folks start paying attention. Oak Ridge National Laboratory took a closer look at whether the reduced fuel consumption from a lighter aluminum body makes up for the fact that producing aluminum is far more energy intensive than steel. And the results of the study are pretty encouraging. In a nutshell, the energy needed to produce a vehicle's raw materials accounts for about 10 percent of a typical vehicle's carbon footprint during its total lifecycle, and that number is up from six percent because of advancements in fuel economy (fuel use is down to about 68 percent of total emissions from about 75 percent). Still, even with that higher material-extraction share, the fuel-efficiency gains from aluminum compared to steel will offset the additional vehicle-extraction energy in just 12,000 miles of driving, according to the study. That means that, from an environmental standpoint, aluminum vehicles are playing with the house's money after just one year on the road. Aluminum-sheet construction got topical real quickly earlier this year when Ford said the 2015 F-150 pickup truck would go to a 93-percent aluminum body construction. In addition to aluminum being less corrosive than steel, that change caused the F-150 to shed 700 pounds from its curb weight. And it looks like the Explorer and Expedition SUVs may go on an aluminum diet next. Take a look at SAE International's synopsis of the Oak Ridge Lab's study below. Life Cycle Energy and Environmental Assessment of Aluminum-Intensive Vehicle Design Advanced lightweight materials are increasingly being incorporated into new vehicle designs by automakers to enhance performance and assist in complying with increasing requirements of corporate average fuel economy standards. To assess the primary energy and carbon dioxide equivalent (CO2e) implications of vehicle designs utilizing these materials, this study examines the potential life cycle impacts of two lightweight material alternative vehicle designs, i.e., steel and aluminum of a typical passenger vehicle operated today in North America. LCA for three common alternative lightweight vehicle designs are evaluated: current production ("Baseline"), an advanced high strength steel and aluminum design ("LWSV"), and an aluminum-intensive design (AIV).

Submit your questions for Autoblog Podcast #329 LIVE!

We're set to record Autoblog Podcast #329 tonight, and you can drop us your questions and comments 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 #329
Subcompact sales slump, yet again

Ford Focus ST, Fiesta ST buyers to get free Octane Academy driving school

The Ford Focus ST and Fiesta ST have created plenty of excitement in the sport compact segment, and Ford is looking to make sure that owners are driving and enjoying their cars to the best of their abilities. As an added bonus for buying one of these sporty hatchbacks, Ford will provide a complimentary ST Octane Academy session to be held at the Miller Motorsports Park in Utah.
Attendees will be responsible for travel and lodging, but Ford will provide the driving school free of charge. Included in this two-day trip, ST owners will get class instruction and driving instruction in prepped Focus ST and Fiesta ST models on the track and autocross course. Some karting action will also be involved as will a tour of Ken Block's Hoonigan Racing headquarters located nearby. If this doesn't sound like enough fun, there is also an optional day of activities that includes some more track time in a Mustang GT and off-road instruction in an F-150 SVT Raptor.
Ford told us that those who have already purchased a Focus ST or Fiesta ST will still be able to attend the performance driving school, but the press release, which is posted below, makes it sound like it applies to original owners only. Ford has yet to announce its schedule for the ST Octane Academy or prices for additional activities or guests.