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What's the best way to lubricate the lock cylinder? It sticks when cranking the car and I have to manually turn it back or the starter keeps running. Is this a sign of pending failure or does it just need to be lubed? The car hasn't been run in a month or so and it's got 192k on the clock so it could be tired.
If the problem is lubrication, then yes dry graphite is the way to go. However, if it is sticking due to metal shavings from the key being inserted/removed thousands of times, then you either need to replace it or give it a good cleaning. Here is a good video on how: