The FSM tells you to lube you door hinges.

I like some lube on there to displace moisture, the pins are steel that will rust if left dry and not lubbed. Then the rusty pins will wear out the bushings over time. And we don't know if the bushings are oilite or not. These are low speed and never make one full revolution. Also rarely move. Unlike a place where oilite bushings were designed for. In a constant spinning shaft, or a constant back and forth action of a suspension part.


I like to dissuade the use of spray on lithium grease because over time it hardens and becomes a cement like problem. Tri-flow with Teflon was recommended by several professionals for hinges, latches and lock cylinders. It stays fluid but needs to be applied at least yearly.

This product will displace moisture in lock cylinders on cars parked outside, no more frozen locks.