My 2008 may have a wearing key cylinder for the ignition. I'm smart enough not to hang piles of keys on my ring, but unsure if my need to wiggle the key is a true sign of wear in the cylinder or not. It is a service vehicle, so maybe it is wear and the number of cycles are getting to it. Is there a favorite lube or trick on these? Should it come down to replacement, is there a better way to go? Thanks.