Re: 1935 320 Eight oil pressure consensus

Posted by Tim Cole On 2015/8/13 17:05:00

Packard increased the specification for 38-39 to 55-60.
Thus, I wouldn't worry given it is the same motor. I don't know what oil is in the motor, but too heavy an oil in winter can cause pressure high enough to punch a hole in the oil passages to and from the regulator.