what cause my car to burn gas so much

1996 BUICK RIVIERA
141,000 MILES • 6 CYL • FWD • AUTOMATIC
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JCFOLLOWERS7
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  • 21 POSTS
i had a 1/2 tank of gas and i will go for 2 days to work and home 4 to 5 miles its burn almost a quarter of gas up what could it be?
Nov 10, 2011 at 11:28 PM
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RASMATAZ
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Do you have a check engine light and when was last tune-up??

Check the fuel pressure if its within specs-start here
Nov 10, 2011 at 11:35 PM