UNDATED (WJON News) -- The national average for a gallon of gasoline is down nearly $2 compared to six months ago.

Gas Buddy says as we head into Christmas travel week gas is at its lowest level in a year and a half saving Americans $750 million every day.

They say the decline in gas prices will level off but diesel prices could fall another 50 cents or more in the weeks ahead.

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Average gas prices in Minnesota have fallen 11.0 cents in the last week averaging $2.96.  The national average for gas has fallen 11.9 cents averaging $3.09.  The national average for diesel fuel is down 14.1 cents averaging $4.77.

LOOK: 25 over-the-top Christmas displays from across America

To help get everyone in the mood for the upcoming holiday season, Stacker compiled a list of some of the most over-the-top Christmas displays across America.