Removing rust from car door hinges, and from the leverage devices of our car in general, can be necessary if we have not kept up with routine maintenance over the years. After a few years of use, especially in areas where there is a lot of rain and the temperature drops several degrees below zero, the hinges of car doors, hatches and bonnets and boots can start to suffer. They start squeaking, sometimes very loudly, become stiff and hard to open and close. There is also a danger of rust, which must be countered immediately, removing any that has already formed and creating conditions that will be prevent any new formations. Whether these signs are already present or not, it is advisable to carry out regular maintenance and lubrication on the locking and rotation systems in order to eliminate rust from car door hinges.