If the track is gummed up with dirt.
Oil for sliding glass door.
To quickly clean and lubricate a sliding glass door start by vacuuming 1 side of track while the door is still closed.
How to lubricate a sliding door.
Sliding glass doors are generally found in homes that feature outdoor patios pools and decks.
Many times a sliding glass door will become filled with debris and dirt.
Because sliding glass doors are most commonly installed to connect the inside of your house to the outside a lubricant should be able to roll with the punches some products can withstand up to 350 fahrenheit making them great for those who live in warmer states.
This will actually help to move around the lubricant into the harder to reach middle area where the door is constantly sliding and experiencing the friction that makes it stick.
When functioning properly these doors should easily slide to allow for quick access to the outside world.
Move the door back and forth like you did in step 1 to help the door glide over the oiled areas.
Then slide the door all the way open vacuum the other side and scrape out the dirt and debris inside the track using a flat blade screwdriver.
Finally add the 3 in 1 oil along the track.