I have a 2004 Maxima and an independent local business is recommending a Transmission Power Flush. There are 70,000 muiles on the car. What is the recommended transmission maintenance andis this suggested procedure necessary? Thanks

That is possible but it should set some kind of a fault code, have it tested by a local transmission repair shop, in most cases they will do this for free in the hope of getting the repair business.

I doubt Nissan has a set recommendation for either one.
Generally both systems are sealed and the fluid should last for the life of the car. You could flush each system every 50k if you think there is a chance they could become contaminated.

yes

prices on services will vary from town to town, state, to state, country to country. It would be impossible to give you an accurate estimate for the repairs based on the area you live in. Your best bet is to call your local service facilities, whether they be dealer or independent and find out what they charge.

For my area $89 each is pretty average.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Same as on all your vehicles

The same as you have done all your life

Tune-ups went by the wayside 25 years ago

Spark plugs etc--every 3 years or 70,000 miles
Filter -every 3 years or 30,000 miles
Brake fluid every 2 years
Trans& Power Steering every 30,000 miles

Set up your own schedule from past experience

I assume you keep no log book, if have to ask

I'm pretty sire GM recommends a trans flush and filter every 60k on all there newer vehicles.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

I recomend servicing the transmision every 50,000 miles. ie: drop pan replace filter and gasket, clean the sump. A flush also gets more of the fluid changed but I would do that in conjunction with a normal service.

Yes a tranny flush would be great. I would recommend Either Going out and purchasing a new tranny filter, gasket and Transmission fluid from your local Auto parts store and doing it yourself, CHEAPEST. Or going to your local Valvoline to have it flushed. Cost is around $100

I would not recommend a flush. This just may stir up a problem. However unless you know the fluid has been changed recently I would recommend a full fluid/filter change. Do not take it to any chain transmission shop. I recommend you take it back to your local GM dealer.

thats good. at 100,000 change the timing belt.