On my 07 it had just over 12000 when I had it in for the drivers side valve cover gasket.
They looked at it, wiper it off, ran it, wiped it, ran it, then said it was leaking That' s what I told them.
The part took over 30 days to get in, and they scrashed the fender.
I really don't like to take my cars to the dealer also. My truck has 2 recalls & other things
also to fix. Good luck & best wishes !!!