Hydraulic jack oils seem to come in a bunch of different viscosity grades for ISO and SAE like AW32/SAE10, SAE20, etcetera.
If Harbor Freight sells SAE20 and I had some SAE10 laying around, how much of a difference does it makes if I just use the Coastal SAE10 jack oil? Is there a reason why some companies make jack oils in different weights?
FWIW: The manual for the jack doesn't actually specify weight. I have never seen any of my floor jacks specify a weight for the oil.
If Harbor Freight sells SAE20 and I had some SAE10 laying around, how much of a difference does it makes if I just use the Coastal SAE10 jack oil? Is there a reason why some companies make jack oils in different weights?
FWIW: The manual for the jack doesn't actually specify weight. I have never seen any of my floor jacks specify a weight for the oil.