I did a major service with Nissan and they did not follow the tech manuals for my FX, instead they were going by something comparable. Missed a few things i.e. did not put enough oil in my FX. If you don't have the time to wait, Infiniti always provided me a loaner, Nissan will give you a rental if you are getting a major service. Infiniti 60K service $1300, Nissan 60K service $867. I have had issues with both, but I have more confidence in Infiniti. Recently I had an issue with my Throttle Body, nothing major so I went to Nissan, about 5 mins from my house, convenient and quick, vice driving 25 miles to the Infiniti Dealer. What I often do is take it to Infiniti for diagnosis, then I will take it to Nissan if the price is much better. I guess I have trust issues....lol.