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A 1995 Buick LeSabre takes 7.4 quarts of transmission fluid. Dextron lll transmission fluid is recommended for use in the Buick LeSabre.
The 2001 Buick LeSabre's fuel tank holds 18.5 gallons as found on http://consumerguideauto.howstuffworks.com/2001-buick-lesabre-3.htm
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