Auxiliary fuel tank
Has anyone installed an auxiliary fuel tank in the bed of their truck? I have a 2019 F250 diesel crew cab with the short bed. Just wondering if you had problems and solutions. Thanks.
Forum Discussion
TimnJo wrote:
I too have a steel tank but don't have an additional water filter and haven't had any water in fuel issues, even after leaving it empty all winter. I put an inline electric fuel shutoff with a dash switch for easier control of when the auxiliary flows into the main.
Water condensation in a fuel tank is a bit of a myth. Just enough truth to make it believable.
Ran the numbers one time for our 220gal tank on our boat. Over the course of a 6 month winter, if the tank was almost empty and air changed over completely every day and 100% of the moisture condensed (ie: very conservative assumptions), the amount of water that would condense out would be equivalent to a few pea size drops.
Water does get into boat fuel tanks but usually around fittings that are mounted flush to the deck or it came with the fuel.
It's not going to hurt to add a filter but if you find water, it's unlikely to be from condensation.
