Originally Posted by Quicksilvers

This is definitely that hot time of the year where radiators are going to fail sorry to hear it. Everyone’s experience can be different I had three CSF radiators and none of them ever failed or leaked. Do you track your Z any or just street duty? The only things I have had to do is change the radiator hoses before because hoses swelled and regular Genuine Nissan “blue” coolant flushes and refills. The only radiator I had leak before on my Z was the Mishimoto radiator after a track event. I hope you fix it soon good luck.