grease for garage door opener plastic worm gear ?

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3M makes a special spray for GDO's.
Or you could go a white lithium or silicone spray route.
Never lube a belt drive, and be sparing on a screw drive.
Less is more with the chain drives, and make sure you take your time to get it IN to the roller spindles on the door, don't just be spraying all over.
Amazon is your friend.
 
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