A work vehicle comprising: an engine; a hydrostatic transmission including a travel pump driven by the engine, the travel pump including a first pump port and a second pump port, a hydraulic circuit connected to the travel pump, and a travel motor including a first motor port and a second motor port, the travel motor being connected to the travel pump through the hydraulic circuit, the hydraulic circuit including a first circuit connecting the first pump port and the first motor port, and a second circuit connecting the second pump port and the second motor port; an engine rotation speed sensor that outputs a signal indicative of an actual rotation speed of the engine; an accelerator operating member; an accelerator operation sensor that outputs a signal indicative of an operation amount of the accelerator operating member; and a controller that receives a signal from the engine rotation speed sensor and a signal from the accelerator operation sensor, the controller being configured to determine a target rotation speed of the engine from the operation amount of the accelerator operating member, characterized in that the controller is configured to determine whether the vehicle is in coasting deceleration, and decrease a differential pressure between the first circuit and the second circuit in accordance with a deviation between the actual rotation speed of the engine and the target rotation speed, or in accordance with the operation amount of the accelerator operating member when the vehicle is in the coasting deceleration. an engine; a hydrostatic transmission including a travel pump driven by the engine, the travel pump including a first pump port and a second pump port, a hydraulic circuit connected to the travel pump, and a travel motor including a first motor port and a second motor port, the travel motor being connected to the travel pump through the hydraulic circuit, the hydraulic circuit including a first circuit connecting the first pump port and the first motor port, and a second circuit connecting the second pump port and the second motor port; a travel pump driven by the engine, the travel pump including a first pump port and a second pump port, a hydraulic circuit connected to the travel pump, and a travel motor including a first motor port and a second motor port, the travel motor being connected to the travel pump through the hydraulic circuit, the hydraulic circuit including a first circuit connecting the first pump port and the first motor port, and a second circuit connecting the second pump port and the second motor port; a first circuit connecting the first pump port and the first motor port, and a second circuit connecting the second pump port and the second motor port; an engine rotation speed sensor that outputs a signal indicative of an actual rotation speed of the engine; an accelerator operating member; an accelerator operation sensor that outputs a signal indicative of an operation amount of the accelerator operating member; and a controller that receives a signal from the engine rotation speed sensor and a signal from the accelerator operation sensor, the controller being configured to determine a target rotation speed of the engine from the operation amount of the accelerator operating member, characterized in that the controller is configured to determine whether the vehicle is in coasting deceleration, and decrease a differential pressure between the first circuit and the second circuit in accordance with a deviation between the actual rotation speed of the engine and the target rotation speed, or in accordance with the operation amount of the accelerator operating member when the vehicle is in the coasting deceleration. determine a target rotation speed of the engine from the operation amount of the accelerator operating member, characterized in that the controller is configured to determine whether the vehicle is in coasting deceleration, and decrease a differential pressure between the first circuit and the second circuit in accordance with a deviation between the actual rotation speed of the engine and the target rotation speed, or in accordance with the operation amount of the accelerator operating member when the vehicle is in the coasting deceleration.