I noticed my 30 year old Sears floor jack would not go up more than a few inches. Got a QT of hydraulic jack oil at NAPA and added some and it goes up the full distance now. I credit Sears with making a good jack and lasting labels, the label (instructions) is still there and readable as is the label with the model and serial.
Now what to do with the other 30 oz of hydraulic jack oil. Wait another 30 years to add another 2 oz?
Now what to do with the other 30 oz of hydraulic jack oil. Wait another 30 years to add another 2 oz?