2 months, no moroso coolant expansion tank. I call customer service and never get ahold of anyone, talk to the sales guys and they cant help me I have to call customer service. I was on hold for 1 hour 22 min today only to call the sales desk and find out there arent any customer service guys there today. For some reason the customer service guys are never in the building. I have left my number three times and never gotten a return call. Never will they get any of my money again. Guess its time to go to the bank and see if I can stop payment or get my money back.