1965 Ford F-100 Custom Cab Twin I Beam on 2040-cars

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Lincoln recycling tree fibers into new MKX armrest

Want to hug a tree, or at least a really small part of one. Then set your arm down on one of those armrests in the 2014 Lincoln MKX crossover. The US automaker is working with Weyerhaeuser and Johnson Controls on a tree-based, cellulose-reinforced polypropylene material used in the component that connects the armrest to the floor console, Wards Auto says. With properties similar to plastic, the tree-based material replaces fiberglass and is about six percent lighter. No big deal for now, but if the material starts getting used for things like battery trays and interior storage covers, that loss in weight may eventually start adding up enough to boost fuel economy a bit, providing a green double bonus. Lincoln parent Ford, which isn't saying how much more (or less?) it costs to use the new material, established its Biomaterials and Plastics Research team in 2001. In 2007, the company began using soy-based foam in car seats used for models such as the Lincoln Navigator and Ford Mustang and has since broadened biomaterials use to components like floormats and cupholder inserts. Ford also used recycled plastic bottles from the 2012 North America International Auto Show for seats in the Focus Electric.

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).

The fascinating forgotten civil defense history of Mister Softee trucks

Hemmings came across an interesting article from the Throwin' Wrenches blog about the intersection of ice cream, cars and civic duty in America's late 1950s. In particular, it focuses on the Mister Softee trucks, which criss-crossed neighborhoods of the eastern US serving ice cream. Looking past the ultra-durable vehicles used - heavy-duty Ford-based chassis, for what it's worth - the article delves into some deeper national-security territory.
See, Mister Softee truck owners were voluntary members of the Civil Defense, thanks to all the useful stuff (potable water, generators, freezers and fridges) that the machines carried with them for serving ice cream. Click over to Throwin' Wrenches for the full run down of how Mister Softee would have stepped in to help fight if the Cold War ever turned a little hotter.