The attached link brings up some good points about evaluating the EPA fuel mileage ratings advertised for new vehicles.
1. The testing is done by the automaker on a dynamometer. 2. EPA only audits 10-15% of the manufacturer's tests. 3. Gas engine vehicles are tested with ethanol free gas. To compare gas engine ratings with similar diesel vehicles, the gas engine fuel mileage must be de-rated by 3 to 4 %, or else factor in the cost of ethanol free gasoline. 4. Several automakers have been required to revise their fuel ratings downward.
The bottom line is that these fuel mileage ratings should not be taken at face value. It is best to get real world fuel mileage feedback from forums, friends and acquaintances who own a similar vehicle and are using the way you intend to.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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