Your pressure gauge may be broken....If it fluctuates, then you know its not your gauge, but if your gauge always reads 80, it may need to be replaced.
100 psi
factory air pressure norm is 80 psi
between 20 and 80 psi between 20 and 80 psi
Optimal household water pressure should be between 40 psi - 80 psi. If water is supplied by public water usually they supply the minimum pressure. If you have more than 80 psi, a pressure reducer is recommended.
40-80 PSI cold.20-40 PSI hot.40-80 PSI cold.20-40 PSI hot.
Over 20 psi at idleUnder 80 psi while driving Over 20 psi at idleUnder 80 psi while driving
80 psi or less
32 psi
Around 80 psi cold at startup, and 40 psi at normal operating temperature.
8 PSI min - 80 PSI max
40-80 psi.
60-80 psi cold, 30-45 psi hot.