Hello, It seems that on door stops on new cars are covered in grease (or perhaps nothing in some applications). In my wife's VW, it is a grey moly-looking grease, on my MB and BMW, it looks like a light-tan/clear grease. My saab has a plastic door stop like my BMW, but no grease. There is a coating on it, which feels more or less like a clear waxy coating, similar to what is found on new bicycle chains. Often times I see mechanics spraying white lithium all over door stops and door hinges. Not sure if this is best, or if there is a benefit to one type over another. The grease used on the stops and hinges on the wife's VW seems to pick up dirt easier, but they are more out in the open than on the BMW and MBs. ANy suggestions? What about dry lube? Liquid wrench sprays a dry lube which Im thinking of trying on the saab. ANy thoughts?