Are refrigerator door hinges squeaking?
No different than any moving parts apparatus especially wheel bearings, wheels, bicycle pedals, etc.
lack of oil or grease to these concoctions will cause them to squeak. Similar occurrences can produce
refrigerator door hinges to squeak as well.
Apply grease to where annoying noise appears to be coming from. Viscous cooking oil can be used
as a substitute to grease lubricant instead.
(Apply grease at the bottom of the refrigerator door.)