guess you mean PRESSURE
Lol you got me that was indeed what I meant.
Your comment reminds me of a journey years ago in my dads old 1927 Austin ulster, it was a hot day and we were trying to focus on the temp gauge sticking out of the top of the bonnet. Leaning forward we saw it was well in the red when the thing shot up 20 feet in the air, landing behind the car to be run over by the car behind.