The 2003 Ford F-250 7.3 liter diesel truck has a fuel tank capacity of up to 28 to 39 gallons. This vehicle uses exclusively diesel fuel, which can be found at moSTService stations. While diesel fuel tends to be more expensive than the lower octane rated gasolines, it is excellent for powering large, strong vehicles such as the F-250.
Jeff k
September 28, 2020
Just pulled my window sticker out, bought truck new in 2003. SD f250 4x4, 7.3 D, long bed. And it says 38gal listed under standard equipment.
Daniel C.
April 9, 2020
The 2003 ford f-250 7.3L diesel fuel tank capacity is 29 to 38 gallons.
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