There's no Ford vehicle called an "F250 Van". The F-250 is a heavy-duty pickup truck, not a van. Ford's van lineup includes the Transit and, previously, the E-Series vans. The fuel tank capacity for those vans varies greatly depending on the year, model (Transit Connect, Transit 150, Transit 250, etc.), and configuration.
To find the fuel tank capacity, you need to specify the year and model of the Ford van.
