370z Auto question

Naum16 · 10-25-2013, 12:55 PM

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

Chuck33079 · 10-25-2013, 01:04 PM

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

DEpointfive0 · 10-25-2013, 01:05 PM

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

zae757 · 10-25-2013, 01:06 PM

Naum16 · 10-25-2013, 01:10 PM

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

Tadpole · 10-25-2013, 01:11 PM

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.

DEpointfive0 · 10-25-2013, 01:12 PM

Quote:

Originally Posted by Naum16

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

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

DEpointfive0 · 10-25-2013, 01:13 PM

Quote:

Originally Posted by Tadpole

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.

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

Naum16 · 10-25-2013, 01:14 PM

*shouldvr changed the trans fuild as well*

Chuck33079 · 10-25-2013, 01:16 PM

Quote:

Originally Posted by Naum16

*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.

Naum16 · 10-25-2013, 01:17 PM

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

Naum16 · 10-25-2013, 01:18 PM

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

Chuck33079 · 10-25-2013, 01:19 PM

Quote:

Originally Posted by Naum16

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

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

Naum16 · 10-25-2013, 01:24 PM

okiee dokiee thought to just make sure.

wstar · 10-25-2013, 02:13 PM

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.

10-25-2013, 12:55 PM	#1 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	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

10-25-2013, 01:04 PM	#2 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	It's pretty much a sealed unit. Check the manual. They don't call for it to be changed until much later than 43k. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

10-25-2013, 01:05 PM	#3 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Change it at 100k. Until then. Don't worry Jordo!, luigi90210 and critical like this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

10-25-2013, 01:11 PM	#6 (permalink)
Tadpole A True Z Fanatic Join Date: Sep 2013 Location: Lockhart, TX Posts: 1,082 Drives: 13 Nissan 370Z A7 Rep Power: 17	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. __________________ Takeda TR3009P Short Ram Intakes, Custom Dual Exhaust, X-Piped with 18" Resonators & TopSpeed Axle Backs. EVO-R Led Third Foglight,

10-25-2013, 02:13 PM	#15 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	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. Dart, sparky and Shadezz like this. __________________ 7AT Track Car! Journal thread / Car setup details

10-25-2013, 01:06 PM	#4 (permalink)
zae757 Base Member Join Date: Oct 2013 Location: Fort Dix, NJ Posts: 167 Drives: 2010 370Z Rep Power: 11

10-25-2013, 01:10 PM	#5 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	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

10-25-2013, 01:14 PM	#9 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	shouldvr changed the trans fuild as well

10-25-2013, 01:17 PM	#11 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	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

10-25-2013, 01:18 PM	#12 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	Assh%*l€! They gotta try make money some how right lol

10-25-2013, 01:24 PM	#14 (permalink)
Naum16 Base Member Join Date: Mar 2013 Location: IN Posts: 152 Drives: 09 370z Rep Power: 12	okiee dokiee thought to just make sure.

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