Every 3000 miles, or once in three months, the hinges and latch assemblies on the doors,
Hood, and trunk should be oiled a few times with light oil or lock lubricant. The door latch strikers should also be lubricated with a layer of grease as thin as possible, so that it will not affect the movement of the parts due to the accumulation of thick grease. Finally, grease the door and trunk locks with "spray-on graphite lubricant".