This is a recent you tube vid.
I respect this forum and will alter the link with the word DOT for the actual period symbol since the creator is a service and parts provider.

I have read the archives and some folks claim that the brass pieces inside the tumbler are 'self lubricating' and the key dust falls through the body and does not stick inside unless you had sprayed wet lube inside.
Most recommendations are for using only dry graphite powder for lubing.

This vid, besides possibly being a sales vid, is informative.
I am looking for your opinions and experiences regarding the maintenance of these subject parts.

https://www.youtube DOT com/watch?v=9Wi3bWetX2E


Does anybody regularly lube their ignition tumblers and back sides??

How about the experience with aftermarket tumblers.

I also read that the dealer does not sell tumblers for vintage cars and does not match VIN and keys anymore.


My car's tumbler and steering lock is fine as both were replaced about 12 years ago (low mileage car) . I am asking this in order to generate some updated info for this forum and my own knowledge.

Thanks

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD