by metalworker0 » Thu Jul 14, 2022 9:16 pm
The stuff to use is spray grease ..it has a lot of solvent in it that evaporates quickly ..almost boils/ bubbles ..whilst thinned down with the solvent it penetrates the hinges ..then the solvent evaporates and leaves the grease behind, deep in the hinge, exactly were you need it.
The product i think is made by Wurth
that's what you would use from new though, as regular maintenance - it may work... but -sounds like yours need dismantling a and cleaning first ..as they may be full of rust ..and no amount of fancy grease is going to put that right
all the best..mark