An oil change system. The oil change system includes an evacuation system, a refill system, one or more sensors and a control circuit. The evacuation system includes a first quick connect fitting configured to mate with a quick connect valve of a vehicle. The refill system includes a second quick connect fitting configure to mate with the quick connect valve of the vehicle. The control circuit is coupled to the evacuation system, the refill system and the one or more sensors, and is configured to automatically identify the vehicle, determine a type, a viscosity and a volume of oil associated with the vehicle and control a volume of new oil added to the vehicle.

Methods and systems are provided for increase a rate at which a saddle fuel tank is depressurized responsive to a request for refueling. In one example, a method may include, responsive to the request for refueling, depressurizing a primary side of the saddle fuel tank to a secondary side of the saddle fuel tank, and commanding open a refueling lock coupled to the primary side to allow fuel to be delivered to the primary side when pressure in the primary side drops below a threshold pressure. In this way, the secondary fuel tank may be maintained at atmospheric pressure prior to the request for refueling, which may increase the rate of depressurization of the saddle fuel tank responsive to the request.

Methods and systems are provided for increase a rate at which a saddle fuel tank is depressurized responsive to a request for refueling. In one example, a method may include, responsive to the request for refueling, depressurizing a primary side of the saddle fuel tank to a secondary side of the saddle fuel tank, and commanding open a refueling lock coupled to the primary side to allow fuel to be delivered to the primary side when pressure in the primary side drops below a threshold pressure. In this way, the secondary fuel tank may be maintained at atmospheric pressure prior to the request for refueling, which may increase the rate of depressurization of the saddle fuel tank responsive to the request.

An improved control system for a fuel dispenser is disclosed that enables fuel dispensers to process prepaid gas cards based upon a discounted wholesale cost or a non-discounted price that is locked in at the time of the purchase without taking delivery. The control system has access to a snap shot of the regional wholesale gasoline costs across an entire region, such as the US, at the time of purchase of the prepaid gas card. This enables the prepaid gas card to provide a discount on the wholesale cost component of a gallon of gas at any location across the entire region. Since the discount only applies to one component of the retail gas price per gallon; namely, the wholesale gas cost per gallon, the control system automatically calculates a discounted retail gas price at the time and location of delivery based upon the discounted or locked in wholesale cost at the time of purchase of the prepaid gas card. The prepaid gas discount card is received in a magnetic card reader at the fuel dispenser in the same manner as conventional credit cards and provides a wholesaler the ability to create an elastic demand for the gas and regain customer loyalty for gas credit cards.

A system and method for fueling multiple saddle tanks of hydraulic fracturing equipment from a single self-propelled cart. The cart having multiple retractable fuel lines for providing and obtaining fuel. Each retractable fuel supply line uses a flowmeter, a ball valve, and an electrically actuated valve to provide remote control to a controller based on a user's selected fueling requirements. An electronic reporting system provides fuel data to operators and users. Fuel data such as fuel tank status, an amount of fuel usage over a stage level, a daily level, or job level along with a fill level of the fuel tank.

Disclosed herein are devices, methods, and systems that useful for allowing consumers to purchase a fluid in limited and/or discrete amounts or volumes, for example as-needed, daily, weekly, etc. In various embodiments, the disclosed devices, systems, and methods provide for an innovative fluid distribution system, including a device that can receive and monitor payment for a discrete amount of fluid, measure the fluid as it flows through the device, and stop fluid flow when the discrete amount of fluid has flowed through the device. The disclosed device may be in communication with a central server for receiving payment from the user, and providing information to the central server of the device's status.

Disclosed herein are devices, methods, and systems that useful for allowing consumers to purchase a fluid in limited and/or discrete amounts or volumes, for example as-needed, daily, weekly, etc. In various embodiments, the disclosed devices, systems, and methods provide for an innovative fluid distribution system, including a device that can receive and monitor payment for a discrete amount of fluid, measure the fluid as it flows through the device, and stop fluid flow when the discrete amount of fluid has flowed through the device. The disclosed device may be in communication with a central server for receiving payment from the user, and providing information to the central server of the device's status.

A system, for use with a reservoir, for delivering an additive to a fuel tank is provided. The system comprises: a controller, the controller including a processor, a memory, the memory having housed therein instructions for controlling the processor, a display and a keypad; a temperature sensor, the temperature sensor in electronic communication with the controller; and a fluid delivery system, the fluid delivery system comprising: a pump, the pump for fluid communication with the reservoir and in electronic communication with the controller; a flow sensor, the flow sensor in fluid communication with the pump and in electronic communication with the controller; at least one valve, the valve in electronic communication with the controller and in fluid communication with the flow sensor; and at least one outlet, the outlet in fluid communication with the valve. A method of remotely adding an additive to a fuel tank is also provided.

A product delivery vehicle system includes a product delivery vehicle with at least one tank compartment. The system includes an internal valve fluidly coupled to the tank compartment, a control valve, and an air system comprising a main air valve and a solenoid valve fluidly coupled to the main air valve and to the internal valve. The solenoid valve is operable to open and close the internal valve. The system includes an electronic control unit communicatively coupled to the control valve, the main air valve, and the solenoid valve. The system includes a tank tag reader operable to read a tank tag and transmit a tank tag indicator associated with the tank tag, the tank tag indicator indicative of a stored liquid type in a distribution tank. The electronic control unit may maintain the internal valve closed and the control valve locked when a product type mismatch is detected.

A fluid management system includes an authentication device and a fluid dispensing meter, and the fluid dispensing meter includes a processor and a memory. The authentication device is configured to provide data to the processor. The processor is configured to recall information from the memory, to compare the information to the data received from the authenticator, and to control a trigger control mechanism between the activated state and the deactivated state based on the comparison.