Rust
Automotive rust is caused by the oxidation of the iron based metal they use in our vehicles. Everything eventually corrodes, but depending on the makup of the material, protective measures taken, and the conditions that it's subjected to will determine how fast and far it progresses. Once it starts it will continue until taken care of or until everything is converted to iron-oxide.
Types of rust:
Scale -
Surface -
Penetrating -
Common places to look for rust are the front fenders by the wheel well, rocker panels, under door cladding, dutch door/hatch bottom.
Rusted Fasteners:
It happens, using a penetrating oil definitely helps, as well as tapping with a hammer. Note: Pounds is not foot pounds
