Abstract: A system for determining a fuel consumption of a transportable environmental-control unit. The system includes a sensor and a controller. The sensor is configured to sense an amount of fuel in a tank. The controller is configured to receive an indication of the amount of fuel in the tank from the sensor, monitor and filter the indication of the amount of fuel received from the sensor for a first period of time, monitor and filter the indication of the amount of fuel received from the sensor for a second period of time, and determine a quantity of fuel used between an end of the first period of time and an end of the second period of time.

Abstract: The present invention relates to a modified crumb rubber particle having carbon to silicon bonds created by the reaction of the unsaturation in the crumb rubber particle and silicon hydride, with or without the use of a catalyst. Bound silicon content ranges from about 0.1% to 10% by weight. The silicon-modified crumb rubber can be used as is or a reinforcing filler in formulations. Typically the silicon-modified crumb rubber is used in up to 25% by weight of the total rubber present in virgin rubber compositions.