oil pressure drops at idle
#2
Originally Posted by one tonne
oil pressure seems fine while running {about 45} but when I come to a stop it drops to the low end of the parameter is this normal?
#3
Registered User
Be careful...DC is an idiot gauge as well! I have aftermarket gauges & can verify! When the gauge reads >40, the real gauge reads anything from 40-65, depending upon rpm.
BTW...Cummins says the oil pressure should be >10psi at idle and >35psi at 2500rpm. They also mention installing a test gauge into the port on top of the oil filter! As a comparison, my '06 is 18-20psi at idle and ~60 at 2500.
The only way to know your oil pressure for sure, is to use a real gauge.
HTH
Tony
BTW...Cummins says the oil pressure should be >10psi at idle and >35psi at 2500rpm. They also mention installing a test gauge into the port on top of the oil filter! As a comparison, my '06 is 18-20psi at idle and ~60 at 2500.
The only way to know your oil pressure for sure, is to use a real gauge.
HTH
Tony
#5
Registered User
Originally Posted by one tonne
Thank-you I'll put my worries to ease..Where did you plumb your mechanical gauge into??
Tony
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