Kitty's car is a 2004 Ford Escape. We bought it new in December of 2003. Were it not for the fact we've hit two deers in it during the time we've owned it and it got the radiator both times, it'd still have the original Ford gold coolant in it. The first deer hit I would "guess" was about 2013. When I replaced the radiator then, the first time, the coolant still looked "new".