Oil pressure under 11 PSI " Hot" outside temp
06-03-2016, 07:02 AM
#1
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Oil pressure under 11 PSI " Hot" outside temp
He guys got a question,
We know I installed a oil pressure gauge to watch out for the rear gaskets leaking, but I've notice that when the car and outside temp is "hot 80+" the oil pressure is below 11 PSI @ idle, but when the outside temps are in the 60's like this morning even with the car "hot" 45 min drive on the hyw, @ idle the oil pressue is 13-14:/. I've been using 10-30W synthetic oil, should I switch oil to something else? Not sure whats going on here. Thank you
We know I installed a oil pressure gauge to watch out for the rear gaskets leaking, but I've notice that when the car and outside temp is "hot 80+" the oil pressure is below 11 PSI @ idle, but when the outside temps are in the 60's like this morning even with the car "hot" 45 min drive on the hyw, @ idle the oil pressue is 13-14:/. I've been using 10-30W synthetic oil, should I switch oil to something else? Not sure whats going on here. Thank you
06-03-2016, 10:45 AM
#6
He guys got a question,
We know I installed a oil pressure gauge to watch out for the rear gaskets leaking, but I've notice that when the car and outside temp is "hot 80+" the oil pressure is below 11 PSI @ idle, but when the outside temps are in the 60's like this morning even with the car "hot" 45 min drive on the hyw, @ idle the oil pressue is 13-14:/. I've been using 10-30W synthetic oil, should I switch oil to something else? Not sure whats going on here. Thank you
We know I installed a oil pressure gauge to watch out for the rear gaskets leaking, but I've notice that when the car and outside temp is "hot 80+" the oil pressure is below 11 PSI @ idle, but when the outside temps are in the 60's like this morning even with the car "hot" 45 min drive on the hyw, @ idle the oil pressue is 13-14:/. I've been using 10-30W synthetic oil, should I switch oil to something else? Not sure whats going on here. Thank you
EDIT: I also have a 32 row oil cooler if that helps comparison.
Last edited by Waste86; 06-03-2016 at 10:53 AM.
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thanx
06-03-2016, 11:39 AM
#10
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Was it recommended that you run 10w-30 or was that a personal decision?
Yeah, hot oil idle should be right at 14 PSI.
It wouldn't hurt to change your oil to 5w-30 and see if that helps....
Yeah, hot oil idle should be right at 14 PSI.
It wouldn't hurt to change your oil to 5w-30 and see if that helps....
06-04-2016, 10:52 AM
#12
Oil pressure does not change with engine load, only RPM. (assuming oil is at operating temp)
Changing from 10w30 to 5w30 will not make much difference as the oil viscosity at 100 degrees Celsius is almost the same. (for Mobil 1, the 5w30 is about 1 centistoke more: 10.1 vs 11)
I don't think there is anything to worry about, 11 PSI is not far from 14 PSI, assuming the gauge is accurate. You could double check it with an other gauge, like this one: Engine Oil Pressure Test Kit
Changing from 10w30 to 5w30 will not make much difference as the oil viscosity at 100 degrees Celsius is almost the same. (for Mobil 1, the 5w30 is about 1 centistoke more: 10.1 vs 11)
I don't think there is anything to worry about, 11 PSI is not far from 14 PSI, assuming the gauge is accurate. You could double check it with an other gauge, like this one: Engine Oil Pressure Test Kit
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