To do 7A trans fluid change or not??

AstatenateZ

Ok I have 70k miles on my car and VERY OCD! When it comes to service intervals. I have done rear diff every 25-30k , oil & filter every 3-5k , coolant & brake fluid every 15-20k , and about to change spark plugs at 70k instead of 100k cause like I said... OCD... and was told the 7A is a non serviceable / sealed trans with “lifetime” trans fluid ...

Which I have since researched the forum (and found to be NOT true) , I am not having any issues out of my trans the random hard downshift which I’ve noticed is after I use paddle shifters and I guess just the car does that from time to time. No slips or anything weird, like noises.

But I am OCD and saw people’s 7A fluids come out black as coffee at 50-60k miles, so I’m scared to see what mine looks at 70k lol , so I had some of my friends who are techs at Nissan print me off the sheet explaining how to do it. And doesn’t seem like it’s a DIY job like the rear diff where you just drain, top off until it overflows and put filler cap back on. It’s stating you just read temps by using the Nissan computer system and other things. I’m full confident as I DIY everything else that I could drain and top back off and use the right fluid.

But how would I 100% accurately read the proper level of fluid without knowing temps and using Nissans computer software? Id like to change it for safety measures and my own peace of mind even tho I’m not experiencing any issues , but if it’s a bad idea to service it since there’s no issues currently I’d like your opinions and inputs. If it’s a good idea to do so, then I plan to do it and may pay one of my Nissan techs to do it on his off time at work in a Nissan shop. But only if one of my friends has done it before , if not I’d probably just like to tackle it myself.

So anyone wanna give me their .02 cents on when / or if I should even change it , who should change it , is it a DIY job or go to Nissan? What fluid to use? How much fluid? Or any DIY posts on here (I found none when I checked)