General Motors Fleet & Commercial Division has launched a new dealer and customer Web site, whygasengines.com. Why gas engines? "The Vortec 8.1L V8 gas engine will be an attractive choice for customers this year," said GM communications manager Rob Minton. "And whygas.com is a great place to learn all about it. New 2007 EPA standards have made diesel engines more expensive than gasoline engines – often thousands of dollars more costly," said Minton. Only GM makes the gas engine available in every medium-duty truck class. The Vortec 8.1L V8 is the only gas engine in classes 6, 7 and 8*. Whygasengines.com features a savings calculator that shows exactly how much money a customer can save with a gas engine, compared to a diesel engine. Other site features include information on gas engine advantages, 2007 diesel standards and the rest of GM’s full lineup of medium duty engines. A dealer locator is also featured prominently. GM Fleet & Commercial is supporting whygas.com with a major marketing effort that includes print ads, online banner ads, a CD-ROM, search engine marketing and direct mailers. * Excludes other GM vehicles. Based on 2006 GM vehicle segmentation. Medium-duty conventional trucks with a GVWR of 19,500 to 37,600 lbs. only. Single axle only.