Provided are formulations, methods of making, and methods of using a functional fluid of the present invention to achieve and maintain optimal frictional characteristics in machines housing that fluid, wherein the functional fluid comprises, among others, a friction-modifying amount of an alkyl toluene sulfonate salt or a mixture of alkyl toluene sulfonate salts. The transducer creates a vibration in the enclosure in response to being driven by an audio signal having a frequency range. Sensors are jointly deployed in arrays on the free surface of the earth, andor in arrays of shallow monitoring holes, which may be intended to be permanent deployments. Transmission of an alert may be initiated according to a result of determining whether the rate of change in the flow of the data received from the one or more streaming data sources exceeds the threshold rate.