Hope you guy's don't think i am a complete dumba** for askin this but bismic states in his procedure for the final fill after you have flushed with water...to start truck up and add distilled water till full....to do this you have to have truck running with degas bottle off.....my question is because the truck is at or near operating temp wont coolant blow out of the degas bottle when cap is removed because coolant is hot?.....i remember a while back i was taking out my intake and removed the hose above the intake that goes to the degas bottle to get more room and the truck was still warm....as i removed the hose from the bottle it blew coolant out i quickly put it back on but it was really coming out!...just enlighten me here...i don't understand the physics.....when i go to refill with coolant and take the cap off i don't want it to blow in my face....