Car got hot today on the way home (219*), and when I got to my house I popped the hood to find coolant all over the front of the engine behind the cap plus on top of the radiator shroud. I had taken the cap off a few weeks back to refill it after installing my block heater. Then I realized that I should refill it at the upper tank, so we don't need to discuss that.. There's been a few drops of coolant on the fan brackets since then which I thought were coming from the overflow tank hoses because there were no clamps on them. It wasn't leaking before I drained the system to do the heater install. The bad thing is I can't just put a new cap on because no one local has the 1.3 bar cap. They have 16 psi and 20 psi. I was too scared that Id blow then end tanks if I used the 20 psi cap, so I left the parts store empty handed. Afraid to try the dealer since it'll probably be $40 for a damn cap. Is there any way to test the cap? If there was an air pocket in the system could it cause the cap to purge crap everywhere? Is the 20 psi cap too much? I topped the system off with the upper tank, and figured I'd try again tomorrow to see if it was possibly a freak incident.