An engine, comprising: an engine body; an intake passage connected to the engine body; a supercharger provided to the intake passage; a first passage provided to the intake passage, wherein a compressor of the supercharger is provided in the intake passage; a second passage provided to the intake passage, communicating with the first passage at a location at least downstream of the supercharger, and not provided with the supercharger; an intake air flow rate adjuster (45, 48, 243) configured to adjust a ratio of an amount of intake air passing through the first passage to an amount of intake air passing through the second passage; an intercooler provided to the first passage at a location downstream of the supercharger; a pump (61, 71) configured to supply coolant to the intercooler; and a controller configured to control the pump (61, 71) and the intake air flow rate adjuster (45, 48, 243), wherein the controller is configured to output a control signal to the pump (61, 71) so that the coolant is supplied to the intercooler in a first operating range in which the intake air flow rate adjuster (45, 48, 243) is configured to at least partially open the first passage to supply the intake air boosted by the supercharger to the engine body, and the controller is configured to output a control signal to the pump (61, 71) so that the coolant is supplied to the intercooler in a second operating range in which a load of the engine body is below a given load, and the intake air flow rate adjuster (45, 48, 243) is configured to open the second passage and close the first passage to supply the intake air to the engine body in a natural aspiration state or a non-boosted state, characterized in that a temperature of the intake air supplied to the engine body in the second operating range is higher than a temperature of the intake air supplied to the engine body in the first operating range, and a geometric compression ratio of the engine body is 13:1 or higher. an engine body; an intake passage connected to the engine body; a supercharger provided to the intake passage; a first passage provided to the intake passage, wherein a compressor of the supercharger is provided in the intake passage; a second passage provided to the intake passage, communicating with the first passage at a location at least downstream of the supercharger, and not provided with the supercharger; an intake air flow rate adjuster (45, 48, 243) configured to adjust a ratio of an amount of intake air passing through the first passage to an amount of intake air passing through the second passage; an intercooler provided to the first passage at a location downstream of the supercharger; a pump (61, 71) configured to supply coolant to the intercooler; and a controller configured to control the pump (61, 71) and the intake air flow rate adjuster (45, 48, 243), wherein the controller is configured to output a control signal to the pump (61, 71) so that the coolant is supplied to the intercooler in a first operating range in which the intake air flow rate adjuster (45, 48, 243) is configured to at least partially open the first passage to supply the intake air boosted by the supercharger to the engine body, and the controller is configured to output a control signal to the pump (61, 71) so that the coolant is supplied to the intercooler in a second operating range in which a load of the engine body is below a given load, and the intake air flow rate adjuster (45, 48, 243) is configured to open the second passage and close the first passage to supply the intake air to the engine body in a natural aspiration state or a non-boosted state, characterized in that a temperature of the intake air supplied to the engine body in the second operating range is higher than a temperature of the intake air supplied to the engine body in the first operating range, and a geometric compression ratio of the engine body is 13:1 or higher.