For those of you grumbling about the high price of gasoline you may be interested to know that your own driving habits are making that tankfull extra expensive. In an Wall Street Journal article over the weekend ("Fast Driver? You Lose" by Andrew Blackman) it was pointed out that cars in the US are really truly honestly optimized for 55-60 miles per hour. Every 5 mph over 60 that you drive is like paying an extra 10 cents a gallon more for gas. Optimal fuel economy is at about 55 mph. Also, if you like to accelerate into red lights or stopped traffic on the freeway take heed, that's costing you 33% more fuel. By driving less aggressively you can shave 60 cents off each gallon making it go further. Plus its much better on your engine and brakes. Here are some tips from the good ol' Dept. of Transportation

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