sd_iconoclast
Registered User
I just rebuilt the engine in my SC. I also installed an Autometer mechanical oil pressure gauge. I was very surprised to find that the gauge reads about 28 PSI at idle, 35 PSI at 1000 RPM, 55 PSI at 2000 RPM, and it tops out at 70PSI. All readings are when the engine is warm.
From other posts, I have learned that these readings are normal.
I have also noticed that the oil pressur appears highly damped. It falls slowly when the engine speed drops.
All my other cars show a little over 10 PSI per 1000 RPMS and the oil pressure follows the engine speed as if it were the tachometer.
Does anyone know why the SC has such high oil pressure or why the pressure changes so slowly?
PS I am using 5w30 castrol synthetic oil.
From other posts, I have learned that these readings are normal.
I have also noticed that the oil pressur appears highly damped. It falls slowly when the engine speed drops.
All my other cars show a little over 10 PSI per 1000 RPMS and the oil pressure follows the engine speed as if it were the tachometer.
Does anyone know why the SC has such high oil pressure or why the pressure changes so slowly?
PS I am using 5w30 castrol synthetic oil.
Last edited: