Can you use premium unleaded gas in a diesel fuel reserve tank and pump that goes in your truck bed?

Like everyone that buys those auxiliary reserve tanks for their diesel trucks they either need it to haul farm diesel for their farm equipment or to refill their own trucks, I have a regular truck that only takes premium super unleaded gas and I would like to get the reserve tank my question is can I do that? Or are the pumps they sell only for diesel fuel or is it just not good to store "regular" gas versus diesel?