My car just turned 90k the other day now I feel like I need to take it in for the 90k service. My main question is this. Did or do you see any power or response gains from your GS after this service? The reason I ask is that my car seems to be lacking in power the past few months. Maybe I am just getting use to it and it is not really changing at all just curious to see if anyone has noticed anything.

I did do a search as well before I posted this thread and looked at two pages of info about the 90k service but none of them talked about power gains (that I found)

Thanks in advance
Red Rover

 

Only when you change your transmission fluid and/or do a tune-up.