Spray lubricant into the hole on the edge of the door.
Vaseline on sliding door track.
The rollers on a sliding glass door have bearings at their axles.
Wipe the glass door s tracks with warm water and soap before the temperature drops.
A silicone based lubricant will be adequate and won t attract dirt.
First wipe off any dust or debris from the tracks and then dip a paper towel into the vaseline.
Look for the hole in the door over the tracks or on the inside of the door.
Works great no residue to speak of.
Another popular method of lubricating and smoothing out a sliding door track is to simply spray a light mineral oil directly on the track and slide it back and forth until the lubricant has been fully distributed along the track.
If you clean your sliding door tracks and rollers regularly choose a petroleum based lubricant.
Lift the sash as high as possible and apply a light coat to the lower tracks.
If you live in an area with ice and snow insulate sliding doors before the cold weather hits.
Your sliding glass will probably have a hole on the side.
Place the straw attached to the lubricant into the hole and press the trigger.