John Stewart

GM Full-Size Pickups and SUVs Deliver Better Fuel Economy

GM Full-Size Pickups And SUVs Deliver Better Fuel Economy And Same Great Capabilities With New 'XFE' Models

EPA-rated fuel economy increases to 15 city and 21 highway Silverado and Sierra have the best aerodynamics in the class Towing capacity on Silverado and Sierra increases to 7,000 lbs (3,175 kg)

DETROIT – General Motors is building on the segment-leading fuel economy of its full-size pickups and SUVs with new XFE models of the 2009 Chevy Silverado, Chevy Tahoe, GMC Sierra and GMC Yukon. The vehicles use a combination of mechanical, aerodynamic and mass-reducing enhancements to deliver a 5-percent increase in EPA-estimated highway fuel economy and more than 7-percent improved mileage in city driving.

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John Stewart

Mexico Confiscates Some American Pickups Buying Cheaper Mexican Diesel Fuel

Mexico Confiscates Some American Pickups Buying Cheaper Mexican Diesel FuelAmericans who buy cheap diesel fuel in Mexico do so at the risk of having their pickup truck confiscated and a fine assessed by Mexican customs officials, according to local newspaper and television outlets in Texas.

Demand for low-cost Mexican diesel fuel has grown to new levels since the beginning of 2008, as the cost of diesel fuel in the U.S. has increased dramatically; it hit a record $4.85 a gallon in mid-July, according to AAA. Diesel fuel prices have started to drop, but the national average is still $4.59 a gallon, up from $2.95 a gallon a year ago.To avoid paying those high costs in the U.S., some American truck owners who live close to the U.S.-Mexico border have made short trips into Mexico to purchase diesel, which averages about $2.20 a gallon.While it’s OK to fill a truck’s primary fuel tank with diesel fuel and return to the U.S., Mexican law prohibits filling auxiliary fuel tanks with diesel. Auxiliary fuel tanks are common on many heavy-duty U.S. pickups used for agricultural and long-distance towing, where stopping for fuel costs time as well as money.Americans who own pickup trucks equipped with secondary fuel tanks are advised to not drive those vehicles into Mexico, even if they aren't purchasing diesel fuel.

U.S. truck owners who own 2007-model-year and newer pickups should also be aware that Mexican diesel fuel is not compliant with U.S. diesel fuel guidelines, which specify that only ultra-low-sulfur diesel can be used with new emissions systems. ULSD is rated at 15 ppm of sulfur content, while Mexican diesel sulfur content can be in the hundreds of parts per million. Using fuel with higher sulfur content will damage these trucks’ emissions components, like diesel particulate filters.Source: www.pickuptrucks.com/

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Fuel Economy Claims on Retrofit Devices

Fuel Economy Claims on Retrofit Devices Toeing the Line…

As the opportunity to sell “fuel economy” looms, there are some guidelines that need to be considered when making fuel-savings claims.

Virtually since introduction of the automobile, part of its evolution has included a fascination about both the type and efficiency of fuel used. Even when the price of gasoline hovered around $.25 per gallon many years ago, the entrepreneurial community was experimenting with a variety of fuel alternatives. When fuel shortages (both real and perceived) later became part of the automotive landscape, products emerged that focused on claimed benefits for mileage improvement. Over time, as new-vehicle manufacturers vied for market share and began focusing on specific features to distinguish one brand from another, fuel economy continued to be a marketing component.

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