So my Autometer temp gauge today reach 250(I know I shouldnt had drove it ) Well Anyways I got home since I just went to my bros house real quick. But I opened the hood and the MrGasket radiotor cap with a thermameter was at 140. I have a new Mrgasket T-stat in there fyi. And the water wasnt boiling over as I expected when I popped the hood... What gives?