I had read with interest the thread on WD-40 not being a lubricant. I need to lubricate the ignition switch on the steering column where the key inserts. In this thread some suggested white lithium grease. I also have some of the dry graphite powder. What do you use to lube? White lithium would be fine but do not want to gum it up or use something I should'nt. Also what should be used on the door locks?

Scott