|
|
Joe Hull asked:
1. Engine starts out at about 1300RPM at idle when cold and Oil
PSI briefly is 81PSI and then drops to 65 or so after 15-20 seconds.
Then as things warm up the RPM's increase and oil pressure drops. RPM
levels out at about 1550 and oil pressure hovers around 30PSI. Is
30PSI an OK oil pressure level at that RPM? I did increase the RPM
briefly toward the end of the hour and oil pressure did go up. At
1900-2000 RPM oil pressure was around 50PSI.
That startup sequence is pretty typical of automotive ECU's. IIRC, the Mazda "rule of thumb" for oil pressure indicates that 30 PSI will provide adequate lubrication up to 3000 RPM.
Dale R.
|
|