jmess wrote:At 60K if I figured I was going to put another 60K on the car I might consider a simple drain and fill for the automatic fluid. If I lived where it was scorching hot I might change the rear diff juice while I was at it. I would politely say no thanks to power flushes, injector cleans, combustion chamber cleans, and etc..
I am reluctant to encourage a drain and fill of the transmission for one main reason. The original fill fluid was Nissan Matic-J and that has been replaced by the new Matic-S as a direct replacement getting a correct fluid exchange using the machine actually works fairly well in completely exchange almost all the original fluid. A D&F only gets about 3 qts in the pan.
That is something I would recommend at 60k-ish, however there are those that get them done at half that and that is fine too. Some people do not mind excessive maintenance and I do everything in my power to make sure they get everything they are looking for out of their cars.
Intake and combustion chamber cleaners are not intended or recommended by Infiniti. I feel the investment does not equal the return. If you are running premium as recommended the fuel cleaners in high quality fuel are usually sufficient for the injectors in these cars. I will post pics on a car that I know has not had fuel cleaners run through it.