If this doesnt help, then nothing does! This is the new ages duct tape & zip tie, and belongs to everyones garage shelf!
CRC 5-56 multifunction grease
This is just like WD40, and can be used to loosen rusted bolts, lubricate almost anything, and protect from rust and moisture. For stuck bolts, spray on and let it soak for a while before opening.
CRC is one of the most used products in car carages. CRC 5-56 is known to fix almost everything in the garage.
CRC products in the shop