370z Auto question
 

I have been told many things bout the transmission fluid from its maintenance free and you have to change it at 30k. Okay last time i went to the dealer around 33k i ask them would i be needing new trans fuild and i was told no that it is maintenance free. Now im at 43k do i need a trans flush or what so confused lol

It's pretty much a sealed unit. Check the manual. They don't call for it to be changed until much later than 43k.

Change it at 100k. Until then. Don't worry

:iagree:

That's werid because the dealer that checked my oil said I should've changed it at 30k. Are they just trying to make money or is that true . Anyone change there's at 30k

Go to the dealership for clarification and they will let you know when the intervals are. I have never heard of a maintenance free transmission. Something sounds funny about that.

OIL? Or transmission fluid?

If they checked your transmission fluid, they are lying. Kill them. Call corporate



I changed mine at 34k... Because my motor was dropped... Twice... And my radiator was changed to a CSF... Lol
Not a one damn change in feel btw. Exactly the same

Almost every new auto is "sealed" and branded as "maintenance free." It means 100k+ service intervals

*shouldvr changed the trans fuild as well*

Nope. Read the manual. It gives you the intervals for fluid changes. The dealer was trying to screw you.

Should I go about changing the trans fluid that doesn't bother me I'll pay 200$ any day to make sure everything is right. I know that every 100k you change trans fuild on any car. But why am I bring told to at 30k don't get it

Assh%*l€! They gotta try make money some how right lol

Stop worrying about the transmission fluid. It's fine for another 50k miles.

okiee dokiee thought to just make sure.

Actually it's a little more complicated than that. Nissans lifetime (or at least, ~100K) change interval is really only applicable if you drive the car like a grandma and never heat up the fluid much (which might be true of most 7AT's ever sold, so their recommendation does make sense on average).

If you drive the car hard at all, even on the street, you should at least swap the fluid every 20-30K miles or so. Mine was pretty nasty and burnt looking after 20k of mostly-street miles with only a few track weekends. Basically the hotter you get the fluid, the more often it needs changing. Unfortunately we don't get a fluid temp gauge with this car (much less one that tracks peaks, which is what really matters), so unless you install an aftermarket one, you're gonna have to guess, or drain a tiny bit of the fluid and check it's quality (is it really dark? does it smell burnt? does it feel like the same viscosity in your finger as new fluid?). Running a trans fluid cooler can extend the life of it too.

Or you can just do every 20-30K miles for harder street driving and figure you're probably in the ballpark. It's not like the cost of a trans fluid swap on that long of an interval adds much $/mile in the end.

There's a chart of peak temp vs recommended change interval at the end of this PDF (from GTM's instructions for their 7AT upgrades): http://www.gtmotorsports.com/Manuals..._Procedure.pdf If you do have a temp gauge installed or can estimate your peaks based on IR thermo to the trans pan straight after a hard session, you could roughly go by that.

If you decide to have a dealership swap the fluid for you, be sure to read up on the procedure in the Service Manual (available in the appropriate subform here) yourself, and talk to the service guy at the dealership and make sure that he knows how to do it and that you know how it should be done. Don't let them wing it and hook up some "trans flush" machine like a crappy oil change place does for some random soccer mom SUV. They need to manually drain and fill a portion of the fluid in multiple stages and use Consult-III to monitor fluid temp for proper level setting at the end.