"6-8 mpg" at $3.50 a gallon means you pay $0.50 for every mile. How much do you spend monthly on gas ?

My car makes 20mpg and I am spending around 200 bucks already.

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

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1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE