My g finally hit the 130,000 mile club and I wanted do start doing some small maintenance on it such as In-cabin filter change , coolant flush, tranny flush , drive belt change etc... But I want to take it to some one that has experience with G's and where I also have the option of using factory parts... Where have you guys trusted with your G's and how was you experience ???

 

I go to the SoCal board:

https://g35driver.com/forums/southern-california-44/

 

corner 3 garage in lake forest

 

Go to REGIONAL then SoCal at the top.
https://g35driver.com/forums/southern-california-44/

You'll find a sticky that's called Unofficial Shop Directory, there should be several shops in the OC area our members have recommended. I'm surprised with 130K miles on your G you're just now looking for someone to do average maintenance that should have started at 30K miles, what's with that?
Gary