You should check your fluid level at least once every 12 months more often if you use the jack frequently like in a workshop situation.
Floor jack fluid fill.
Once you buy a new floor jack you may use it for 2 to 3 years without having to refill the hydraulic oil.
Then remove the plug or screw from the oil.
The hydraulic fluid is compressed inside the floor jack and this forces the pistons to rise and this pushes the saddle to lift your vehicle.
How to fill a floor jack if you own and use a hydraulic floor jack you will want to ensure you keep the the hydraulic fluid level at full for proper and safe operation.
Once the jack is lowered locate the oil filler port which is on the bottom of the jack s reservoir near the flat base.
Works for most heavy and semi heavy quality made floor jacks those throwaway jacks from china over the last 15 or 20 years will blow seals out it s just.
To add oil to a hydraulic floor jack start by making sure the jack is completely lowered by turning the jack s release valve counterclockwise until it s as low as it can get.
In this case turn the jack upside down and drain the contaminated oil fill the jack with the new oil up to the required level.