sup guys/gals, names bryan. im new to subarus period. i have a 98 subaru impreza 2.5rs coupe and its having overheating problems. temp gauge has not gone all the way up but always run out of coolant. got new thermostat and water pump but still run out of coolant. i wanna say there isnt any leaks but then again im always out of coolant so i wanna say i cant find the leaks. could it be head gasket? i drove the car for an hour plus but temp gauge always stays at half point. could anyone please help me out?