Originally Posted By: EdMcCormick
Per there web site
Use a small amount of silicon lubricant to lube the chain, door rollers, bearings, and hinges. The opener does not require additional lubrication. Do not grease the door tracks.
Maybe, but what they don't tell you is that inside many of these garage door openers is a plastic (nylon) worm gear assembly that will wear out if you don't occasionally add some plastic-safe grease (I use white-lithium grease). I lube mine every few years, 20 year old LiftMaster still working great.
Don't be surprised if you open up the unit and see a bunch of white plastic dust in there, that's what happens if you cycle your door a lot and rely on "factory lube" to last years beyond the warranty.