The hinges and the latch assemblies on the doors,
Hood, and trunk are supposed to be sprayed with a couple of drops of light oil or lock lubricant after every 3000 miles or after every three months. Moreover, the door latch strikers ought to be greased with a thin layer to reduce the wear and enhance an easy movement. Spray-on lubricant of a graphite is also recommended to lubricate the door and trunk locks.