Abstract: A machine having a dual fuel engine and an LNG tank is provided. The machine carries out a plurality of repetitive work cycles, and includes an LNG tank advisor module including a controller and a memory. The controller is programmed to provide an LNG tank refill time. The memory stores cycle statistic data for each cycle segment of the repetitive work cycles. The controller is programmed to identify a current cycle segment of the repetitive work cycles, predict future cycle segments based on the current cycle segment and an identified pattern of segments of the repetitive work cycles, predict future cycle statistic data for the future cycle segments based on the cycle statistic data, predict the LNG tank refill time based on the future cycle statistic data using the controller, and trigger an operator alert based on the LNG tank refill time.