Welcome, Nemesis. You represent what is probably the main reason for a place such as this to exist..... Good info, at a good price (cheap as, if not free) to ensure you car is kept running without bleeding you dry.....
Main dealers read from a script as supplied by VX. Then altered by the dealer. Then subaltered by the foreman... Then altered again by the 'head' mechanic which, as you have found, results in things like half the spark plugs replaced instead of them all, several services claiming fuel filter replacement when it wasn't and similar....
Use this place for what it was intended to be..... A safe repository for good, honest, no bullshit info to ensure that one of the better cars from the GM stable keeps running on and on, as intended....
use the search function wisely, Obi Wan.....
