Been going on for a few months already it started out after a heater hose blew. i noticed the car feeling funny i thought it was timing but then i noticed the radiator losing water. used to be id put a gallon every week or so now its like every days and i see no leaks the oil looks fine. my uncle thinks its the thermostat that needs to be changed. the temperature stays below half way all the time as long as i put water every day.