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 ...

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Wal-Mart has unveiled a new prototype for a delivery truck it says will significantly reduce its delivery fleet's emissions. The Walmart Advanced Vehicle Experience, or WAVE, is the company's ...