As part of Wal-Mart's program to double the fuel efficiency of its heavy-duty truck fleet in 10 yeas, not only have they just announced that they're investigating dual-mode, diesel-electric ...

Wal-Mart is going to introduce four liquefied natural gas (LNG)-fueled Peterbilt 386 trucks into service at their distribution center in Apple Valley, California using Westport Innovations HPDI ...

International stores represent only about a quarter of Wal-Mart's business. While the company is nearly ubiquitous in the U.S., its international business is the future, necessary for the company ...

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