Please note that the Fuel Consumption plugin does not calculate anything per day or per trip. It simply divides volume filled by the distance driven since the last refill to get a fuel consumption value since the last refill.
That said, we could make it possible to use the Exp. Fuel Consumption in e.g. a Trip Report. The Exp. Fuel Consumption could then be multiplied by the trip distance to get the amount of fuel used during the trip. Is that what you are asking for? This feature would be independent to the Fuel Consumption plugin, since it doesn't use the refill log.