try this thread
Graphite spray lubricant in ignition lock - PeachParts Mercedes ShopForum
graphite long term is not good as it clogs behind lock pins.
If you don't like oil then evaporating lubricant will free without the alleged clogging
Graphite spray lubricant in ignition lock - PeachParts Mercedes ShopForum
graphite long term is not good as it clogs behind lock pins.
If you don't like oil then evaporating lubricant will free without the alleged clogging