hi, if yr car is still under warrantly for 3 yrs or 100K. pls
still go to their servicing as it much safer,so as not to have
warrantly void.(some outside servicing will change this and that
with other brand items and you may face with problem later. OEM
will not warrantly when they saw items have been changed without
their knowledge). Do it after the 3yrs or 100K period,if it stated
in yr contract when you brought it.
after 3 yrs, you can join the CAS, Stars auto or others which you
think can give you better service or back to your OEM.
At the meantime, try to change the SA, look for other SA when your
next servicing,after all you are paying.