I recently found Tri-flow, it is a bicycle chain lube. This stuff is great penetrates well and works great on door hinges, hood hinges, window tracks and hood latches. This stuff is amazing and very low odor with just a couple applications loosens metal to metal contact up in seconds. I used this one some rusty Trans Am seat tracks that were not moving at all. Once I applied this they were gliding along with no binding. I also used this on my trucks drivers hinge since the little star thing was not moving freely and I suspect is what broke the door hinge. A little dab and little star thing was moving and no more squeak.
