Doug, please keep to the original post. you might have a point to the oil level. maybe the OP had a low oil level low while not all jacks were totally up.
Then adding more will not help.
Now to keep inline with the OP, when i removed my bad jack oil solenoid, the jack was down and stayed there. so the line could not have pressure. i used the lumber to move the jack up, the oil squirted all over the place. after this, putting back the soleinoid, filling with oil, all was good.
it has been a year now and that jack works everytime.
the jack chrome surface had no scores.
putting ALL CAPS does not change the fact that changing the oil worked, that made me feel good, not changing the oil
a jack and oil is a jack and oil. not exact product relatated