How to Oil a Floor Jack

Floor jacks differ tremendously from the emergency jack that normally comes with modern vehicles. Floor jacks use fluid to provide lift; the small emergency jacks use simple screw systems. Floor jacks generally can support much higher weights, but they require service from time to time. Oil must be added to a floor jack, very similar to the way it must be added in a car's engine. Check your owner's manual to find your jack's specific service interval.

Things You'll Need

• Screwdriver (optional)
• Funnel
• Hydraulic jack oil

Instructions

1. Lay the jack on a flat surface in its normal position. Never lay a floor jack upside down or on its side.

2. Locate the oil plug or service screw. Some models have a simple plug; others have a screw you must remove. It's usually located on the cylinder. Pull out the plug or remove the screw.

3. Twist the release handle to begin bleeding the system. Apply pressure to the jack's lift point, and pump up the jack handle eight to 10 times.

4. Use a funnel to add hydraulic oil to the system. Add a small amount at a time, until the well is full. Replace the oil plug or service screw when you are finished.

Tips & Warnings

• Only use hydraulic jack oil in your floor jack. Different lubricants could damage your floor jack.

References

• Floor Jack Manual (PDF)
• How a Floor Jack Works

Resources

• Hydraulic Jack Oil