So I have been having some weird problems lately with random overheating. It seems every 2-3wks my car overheats/gets hot. When I check the radiator the water is low, then I fill it and its fine for a while, then it happens again. Every time I refill it, I am parked on an incline and I massage the radiator hose to ensure that I get all of the air out. I have no leaks that I'm aware of(I don't see/hear anything as far as water coming out), and my cooling system was completely redone a little over 1 year ago(mishimoto radiator, mishimoto fans w/shroud(they come on at 190), isis radiator hoses, nismo thermostat, also my water pump was replaced before the cooling system as well a power enterprise hg. I have no idea what else to trouble shoot, and this problem has only surfaced over the past few months. I also have replaced the stock turbo water lines with taka lines. I'm stuck, and can't figure out what to do.