1998 Camaro w/Mobil 1 5W30 SS
(usually car is run on 10W30 Royal Purple, I am experimenting with M1)
Today for example at an ambient air temperature of 28 degrees F i for 10mins after cold Engine Start-Up that the Oil Pressure was around 70-75psi.
The OE pressure at operating temperature and 2000rpm is 60psi
I am running an oversize K&N Filter...and yes at operating temperature 60psi is right on the dot for my engine.
Is this 70-75psi reading caused by the bypass valve being shut closing the filter...and hence raising the system pressure reading?
Or is it something along the lines that the low outside temperature has essentially made the oil "thicker" resulting in a greater pulse against the pressure sensor.
From a Physical Chemistry standpoint is thier a correlation between fluidity-viscosity and Pressure? I thought pressure is based on Force/Area...hence would area be the surface-area of the sensor? Then also I would think a "heavier/cold" oil could produce more force in this same area correct?
Sorry for all the question. From reading the posts thier are a good many very wise people on this board from many interesting mechanical backgrounds citing great sources and data. Thanks for the great posts.
Sun-
(usually car is run on 10W30 Royal Purple, I am experimenting with M1)
Today for example at an ambient air temperature of 28 degrees F i for 10mins after cold Engine Start-Up that the Oil Pressure was around 70-75psi.
The OE pressure at operating temperature and 2000rpm is 60psi
I am running an oversize K&N Filter...and yes at operating temperature 60psi is right on the dot for my engine.
Is this 70-75psi reading caused by the bypass valve being shut closing the filter...and hence raising the system pressure reading?
Or is it something along the lines that the low outside temperature has essentially made the oil "thicker" resulting in a greater pulse against the pressure sensor.
From a Physical Chemistry standpoint is thier a correlation between fluidity-viscosity and Pressure? I thought pressure is based on Force/Area...hence would area be the surface-area of the sensor? Then also I would think a "heavier/cold" oil could produce more force in this same area correct?
Sorry for all the question. From reading the posts thier are a good many very wise people on this board from many interesting mechanical backgrounds citing great sources and data. Thanks for the great posts.
Sun-