I fit a nice new dash to my 250 and decided to change the oil pressure gauge as it was a tatty. I bought a good second hand one. The car has a recon engine and goes well. The old gauge used to read a little high. 100 psi on start up settling to 75 psi running and 50 psi on tick over. The fresh gauge reads 65psi on start up settling to 50 psi running and 25 psi ticking over.