The GTank-LC & Mini-GTank-LC ‘Gtank’ is a supplemental fuel storage/delivery system that connects to and becomes an integral part of the existing fuel storage/delivery system of the Suzuki Intruder 1500 LC, increasing its capacity by between 2.0 and 2.5 gallons all the while not disrupting the normal fuel flow or intended operation of the ‘motorcycle’. This invention allows the operator to select fuel from either the existing fuel storage tank/cell or the new fuel storage tank/cell from either ‘Gtank’ during normal operation of the ‘motorcycle’ without disruption or adversely affecting its use.