You are constantly replacing anti-freeze in your 1994 Mustang there is no liquid on the ground so you do not know if it is a leak what could it be?
IT could be that the engine is consuming it internally through an internal leak into one or more of the engine cylinders, in which case the coolant ends up going out the tailp…ipe as vapor as you are driving. Im not an expert but could it be your thermostat overheating and your antifreeze is going back in to the overflow. Answer You may have a blown head gasket. Have this looked into ASAP, or you will end up with severe engine damage. Stop driving this car until you get this fixed. You can smell the exhaust when it is running and it will smell sweet if this is the case otherwise you should pay attention to this gentleman's answer and do not drive this until fixed. (MORE)