We have an 02' Cat C12 425HP. Occationally the Engine Warning Light flickers on and off at Idle. The light will go away as soon as RPM in increased. The dash Oil Pressure Gauge reads just under 20#'s at idle. Our main question is at above 1000 RPM and at operating temperature the Oil Pressure on the VMS 200 EL reads 99.4 kPa [about 15#'s]. The Dash Oil Pressure Gauge reads 35+ pounds. Any feedback or suggestions would be appreciated. Pete Sarno Stuart, Fla 02' Country Coach