Dic Fuel Used Not Accurate

By Ray2005Chevy
August 1, 2010 in Ask A GM Technician

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Ray2005Chevy

Posted August 1, 2010

What could cause the DIC fuel used display to be inaccurate? My 2005 is usually off by about 10% - meaning that if I put in 20 gallons, the DIC will say I used 18 gallons. The obviously also affects the DIC mpg reading - which shows better mpg than actual.

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