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20 Gallons http://www.edmunds.com/used/2003/honda/odyssey/100178649/specs.html
The gas tank on the 2003 Honda Odyssey holds 20 gal..
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The 2003 Honda Odyssey has a V6 engine.
The 2003 Honda Odyssey has 24 valves.
The 2003 Honda Odyssey has a 5-speed automatic.
The 2003 Honda Odyssey is a gas-powered vehicle.
The 2003 Honda Odyssey is 16 ft. 9.2 in. (201.2 in.) long.
The height of the 2003 Honda Odyssey is 5 ft. 8.5 in. (68.5 in.).
The 2003 Honda Odyssey's turning circle is 37.7 ft..
The 2003 Honda Odyssey has single overhead cam (SOHC).
The 2003 Honda Odyssey runs on regular unleaded.