Aspects of disclosure provide a system for reducing traction of a vehicle. The system includes a mobile controller, and a remote controller. The mobile controller is configured to control release of a liquid. The mobile controller corresponds to a vehicle and configured to direct the release of the liquid to specified wheels of the vehicle. The remote controller is in wireless communication with the mobile controller. The remote controller is configured to store a liquid release setting for the mobile controller, to receive a selection of the vehicle, and to issue a liquid release command including the liquid release setting to the mobile controller corresponding to the selected vehicle. The mobile controller corresponding to the selected vehicle is configured to initiate a release of the liquid directed to one or more wheels of the selected vehicle to reduce traction of the selected vehicle according to the liquid release setting.