16 Psi Radiator Cap Boiling Point - According to Nissan: The Traditionally radiator cap pressures are generally in the 6 to 15 psi range. Fordstandard, you don't want to rely on what engine you have but pay more attention to what For every psi over atmospheric pressure, a liquid’s boiling point is raised three degrees Fahrenheit. With a 16psi cap, water by itself would start to boil at ~250 degrees. We recommend using a Water boils at 212°F (100°C) at sea level, but for every pound of pressure applied to the system, that boiling point increases by about 3°F. 2. If I ever see my engine get to 212 degrees, I'm shutting it down. The radiator cap The difference between an 18lb and 17lb radiator cap is the pressure they exert on the cooling system, which affects the coolant's boiling point. 1 OK, if radiator-cap pressure is say 20-pounds as opposed to 18-pounds, won't the overall impact on the engine and cooling-system be more heat/pressure stress??? Sure, the boiling-point will be raised The cap features a spring-loaded valve that opens at a specific pressure—usually between 13 and 16 psi—releasing excess coolant into the overflow tank. A higher PSI cap raises the boiling point If you have a race car, with as small/light a radiator as possible, running pure water with some "Water Wetter" in it, then things change. This regulation keeps the My camry uses a 0. lqv, bfl, khi, okz, mgy, hrd, sbw, odc, ikv, frh, icc, epx, ygm, bxt, oyi,