7AT maintenance question

sonic370 · 01-29-2012, 07:45 PM

I did a search but wanted an answer from someone that might have already been through this issue....

I've always heard two sides on this issue with the 7AT.
if it ain't broke don't worry about it. i am talking about servicing the transmission. i'm at 37,000 and just looking for some advice. it shifts perfect
no problems and it's a DD. Thanks for any comments.

Doug&Michelle · 01-29-2012, 07:48 PM

I'm a believer in if it ain't broke, don't fix it....just my 2 cents.

wilsonp · 01-29-2012, 08:20 PM

I believe in manufacturer recommendations and the service manual is plain: no service or fluid change. My dealer won't service because of this.

Waiz · 01-29-2012, 08:31 PM

I would refer to your Service and Maintenance guide for clarification but the schedule listed is to replace the fluid at 30K.

http://www.nissanusa.com/content/dam...2010_N_SMG.pdf

I would have your trusted mechanic inspect the fluid just to be safe but I have been told to go until 40K normally

cossie1600 · 01-29-2012, 08:57 PM

Yikes, change it. All they do is overheat and blow up.

harman.khinda · 03-09-2012, 11:44 AM

Quote:

Originally Posted by cossie1600

Yikes, change it. All they do is overheat and blow up.

huh i thought these 7AT trannies were pretty strong. Do you have any links for more info on the 7AT blowing up and overheating? Damn really don't want to spend 400 on a GTM tranny cooler. Could someone recommend a different solution? I'm guessing I have to piece together my own kit.

Jamaica · 03-09-2012, 11:57 AM

Quote:

Originally Posted by harman.khinda

huh i thought these 7AT trannies were pretty strong. Do you have any links for more info on the 7AT blowing up and overheating? Damn really don't want to spend 400 on a GTM tranny cooler. Could someone recommend a different solution? I'm guessing I have to piece together my own kit.

No other option. You either spend 600 to make it run correctly or 7k for a new one. I haven't seen a stock tranny went out yet only forced induction

jtvq37 · 01-21-2018, 07:40 PM

Quote:

Originally Posted by Jamaica

No other option. You either spend 600 to make it run correctly or 7k for a new one. I haven't seen a stock tranny went out yet only forced induction

Old and probably bought the thread back but.... my transmission blew and i think its because i overheated it... plus it was overfilled... so yes a stock tranny can overheat and blow also because of overfilling! I did not overfill it i meerly watched as he overfilled it because he thought it was ok...

Erob · 01-21-2018, 08:30 PM

While I understand the tranny is a sealed unit common sense still applies. Transmission fluid is a lubricant and like all lubricants wear out over time. I had mine replaced at 45000 miles at my local Nissan dealer and have never regretted doing so.

sonic370 · 01-29-2012, 09:07 PM

wilsonp says manual says no service needed.
others say 40,000 I'm confused?

gr8-wrx · 01-29-2012, 09:13 PM

I'd leave it as is, as per page 10 of the maintenance manual.

wilsonp · 01-30-2012, 05:21 PM

If you look more carefully at the SMG, the 30k change does not apply:

5 Automatic transmission fluid except for 370Z.

Waiz · 01-30-2012, 07:17 PM

Quote:

Originally Posted by gr8-wrx

I'd leave it as is, as per page 10 of the maintenance manual.

Quote:

Originally Posted by wilsonp

If you look more carefully at the SMG, the 30k change does not apply:

5 Automatic transmission fluid except for 370Z.

Thanks for the clarification guys.

There you go OP, and I have learned something as well

Fern to the Z · 03-08-2012, 07:53 AM

So when do you service the 7AT ? And which tranny fluid do you guys recommend?
Red Line as good for Tranny's as it is for engine?

UNKNOWN_370 · 03-11-2012, 01:06 PM

Quote:

Originally Posted by Fern to the Z

So when do you service the 7AT ? And which tranny fluid do you guys recommend?
Red Line as good for Tranny's as it is for engine?

USE OEM ONLY!!!!!

The nissan tranny's are supersensative to aftermarket oils. These tranny's are specially engineered and any discrepency in the formula may cause adverse reaction to the tranny operation. As stated before the transmissions have a sealed design to keep most non-certified mechanics out. Our tranny oil can run 200k miles but nissan will change it for posterity and insurance, between 100k-120k miles. Higher performance tranny oil upgrades should be discussed with the GT-R specialist at your dealership. I think nissan does make the higher grade oil at a premium. But if you aren't running turbo's? You really don't need it.

PS Redline is recommended on MANUAL TRANS ONLY or as Engine oil for either car

01-29-2012, 07:45 PM	#1 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 19	7AT maintenance question I did a search but wanted an answer from someone that might have already been through this issue.... I've always heard two sides on this issue with the 7AT. if it ain't broke don't worry about it. i am talking about servicing the transmission. i'm at 37,000 and just looking for some advice. it shifts perfect no problems and it's a DD. Thanks for any comments.

01-29-2012, 07:48 PM	#2 (permalink)
Doug&Michelle Base Member Join Date: Jan 2011 Location: Tulsa, Oklahoma Posts: 176 Drives: '09 370z Tourng Auto Rep Power: 15	I'm a believer in if it ain't broke, don't fix it....just my 2 cents. __________________ Clear bra, Fast Intentions TDX SS 18" Res, Painted wheels, Stillen GenIII CAI, and window tint. Member of OKZCC.

01-29-2012, 08:20 PM	#3 (permalink)
wilsonp A True Z Fanatic Join Date: Jul 2010 Location: Virginia Posts: 1,134 Drives: 2009 Touring Sp Nav Rep Power: 17	I believe in manufacturer recommendations and the service manual is plain: no service or fluid change. My dealer won't service because of this. __________________ 2014 Cayman S PDK Sport Chrono White/Black Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon Was 1991 NSX Auto Black/Black

01-30-2012, 05:21 PM	#12 (permalink)
wilsonp A True Z Fanatic Join Date: Jul 2010 Location: Virginia Posts: 1,134 Drives: 2009 Touring Sp Nav Rep Power: 17	If you look more carefully at the SMG, the 30k change does not apply: 5 Automatic transmission fluid except for 370Z. __________________ 2014 Cayman S PDK Sport Chrono White/Black Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon Was 1991 NSX Auto Black/Black

03-08-2012, 07:53 AM	#14 (permalink)
Fern to the Z Base Member Join Date: Apr 2011 Location: Far West TX Posts: 151 Drives: 16 PW nismO Tech Rep Power: 15	So when do you service the 7AT ? And which tranny fluid do you guys recommend? Red Line as good for Tranny's as it is for engine? __________________ -16 PW/nismO TecH/7AT/Zaktek paint coating/Z1 post-MAF tubes+Side PCV Breather Hose/K&N Drop Ins/F.I. LTH's/ F.I. SS TDX w/12" Resonators- " I LOVE the SMELL of Headers in the morning!!!!"

01-29-2012, 08:31 PM	#4 (permalink)
Waiz A True Z Fanatic Join Date: Apr 2010 Location: SoCal Posts: 9,262 Drives: Z33 & GE8 Rep Power: 460	I would refer to your Service and Maintenance guide for clarification but the schedule listed is to replace the fluid at 30K. http://www.nissanusa.com/content/dam...2010_N_SMG.pdf I would have your trusted mechanic inspect the fluid just to be safe but I have been told to go until 40K normally

01-29-2012, 08:57 PM	#5 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 31	Yikes, change it. All they do is overheat and blow up.

01-21-2018, 08:30 PM	#9 (permalink)
Erob Base Member Join Date: Jul 2017 Location: Kingsport Posts: 32 Drives: 2010 Silver 370Z AT Rep Power: 8	While I understand the tranny is a sealed unit common sense still applies. Transmission fluid is a lubricant and like all lubricants wear out over time. I had mine replaced at 45000 miles at my local Nissan dealer and have never regretted doing so.

01-29-2012, 09:07 PM	#10 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 19	wilsonp says manual says no service needed. others say 40,000 I'm confused?

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