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Transmission and diff oil change

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Old May 8, 2015 | 03:15 PM
  #16  
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JakeG37
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From: Tampa, FL
Originally Posted by MoonlightG/S
A/T FLUID


Changing


Recommended fluid
Fluid capacity: Refer to See: Automatic Transmission/Transaxle > Mechanical > General Specifications



CAUTION:
- Use only Genuine NISSAN Matic S ATF. Never mix with other ATF.
- Using ATF other than Genuine NISSAN Matic S ATF will cause deterioration in driveability and A/T durability, and may damage the A/T, which is not covered by the INFINITI new vehicle limited warranty.
- When filling ATF, be careful not to scatter heat generating parts such as exhaust.
1. Step 1 a. Install the O-ring (315268E000) (A) to the charging pipe

Zoom and Print Options
05_in11g2537sd_tm266-002.png


(310811EA5A) (B).
2. Step 2
Use CONSULT-III to check that the ATF temperature is 40°C (104°F) or less.
a.
b. Lift up the vehicle.
c. Remove the drain plug from the oil pan, and then drain the ATF.
d. When the ATF starts to drip, temporarily tighten the drain plug to the oil pan.

NOTE:
Never replace drain plug and drain plug gasket with new ones yet.
e. Remove overflow plug from oil pan.

Zoom and Print Options
06_in11g2537sd_tm267-001.png


f. Install the charging pipe (A) to the overflow plug hole.

CAUTION:
Tighten the charging pipe by hand.
g. Install the bucket pump hose (B) to the charging pipe.

CAUTION:
Insert the bucket pump hose all the way to the end of the charging pipe.
h. Fill approximately 3 liters (3-1/8 US qt, 2-5/8 lmp qt) of the ATF.
i. Remove the bucket pump hose to remove the charging pipe, and then temporarily tighten the overflow plug to the oil pan.

CAUTION:
Quickly perform the procedure to avoid ATF leakage from the oil pan.
j. Lift down the vehicle.
k. Start the engine and wait for approximately 3 minutes.
l. Stop the engine.
3. Step 3 a. Repeat "Step 2".
4. Final Step a. Use CONSULT-III to check that the ATF temperature is 40°C (104°F) or less.
b. Lift up the vehicle.
c. Remove the drain plug from the oil pan, and then drain the ATF.
d. When the ATF starts to drip, tighten the drain plug to the oil pan to the specified torque. See: Valve Body, A/T > Removal and Replacement > Exploded View See: Valve Body, A/T > Removal and Replacement > Removal and Installation, "Exploded View".

CAUTION:
Never reuse drain plug and drain plug gasket.
e. Remove overflow plug from oil pan.

Zoom and Print Options
07_in11g2537sd_tm267-002.png


f. Install the charging pipe (A) to the overflow plug hole.

CAUTION:
Tighten the charging pipe by hand.
g. Install the bucket pump hose (B) to the charging pipe.

CAUTION:
Insert the bucket pump hose all the way to the end of the charging pipe.
h. Fill approximately 3 liters (3-1/8 US qt, 2-5/8 lmp qt) of the ATF.
i. Remove the bucket pump hose to remove the charging pipe, and then temporarily tighten the overflow plug to the oil pan.

CAUTION:
Quickly perform the procedure to avoid ATF leakage from the oil pan.
j. Lift down the vehicle.
k. Start the engine.
l. Make the ATF temperature approximately 40°C (104°F).

NOTE:
The ATF level is greatly affected by the temperature. Always check the ATF temperature on "ATF TEMP
1" of "Data Monitor" using CONSULT-III.
m. Park vehicle on level surface and set parking brake.
n. Shift the selector lever through each gear position. Leave selector lever in "P" position.
o. Lift up the vehicle when the ATF temperature reaches 40°C (104°F), and then remove the overflow plug from the oil pan.
p. When the ATF starts to drip, tighten the overflow plug to the oil pan to the specified torque. See: Valve Body, A/T > Removal and Replacement > Exploded View.

CAUTION:
Never reuse overflow plug

Hope this helps for the DIYourselfer's
Moonlight,

Where did you find this procedure? I am trying to find a dealer near me to perform this and I am not getting a warm and fuzzy that they know what I want. I want a flush and fill (90%+) fluid exchange. I want to be able to direct them to whatever Infiniti manual or bulletin that specifies what you posted here. Trying to get this done on my 2008 G37s coupe 5A/T with 74,000miles on it.
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Old May 10, 2015 | 11:46 AM
  #17  
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Anyone know the quarts of differential fluid needed for front and rear as mentioned above (g37x sedan). The owners manual does not specify. Also is the transfer case a diy or is that considered part of the sealed for life trans?
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Old May 12, 2015 | 11:22 AM
  #18  
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RickyDgmZ
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Originally Posted by tdoug
Anyone know the quarts of differential fluid needed for front and rear as mentioned above (g37x sedan). The owners manual does not specify. Also is the transfer case a diy or is that considered part of the sealed for life trans?
Buy 2 quarts. The differential holds about 3 pints. I recently did mine not too long ago. 2 quarts was more than enough with some to spare in case you spill fluid. Also pick up a hand pump to pump the fluid in the diff.
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Old May 12, 2015 | 05:02 PM
  #19  
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Upscale Speed
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Which version of the Motul 75W90 gear oil do you guys recommend?
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Old May 13, 2015 | 02:47 AM
  #20  
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mickeytl
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I was thinking about going with amsoil for everything since I have always used amsoil engine oil for years with no issue. Maybe I might give Redline a shot.
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Old May 13, 2015 | 03:41 PM
  #21  
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^ i ran amsoil in the diff and gearbox for a few years and had it changed out last year with redline. i can't tell any difference with the diff - no more or less noise/chatter, locks up when it is supposed to. but the MT shifting is slightly improved with redline especially in cold weather. price is about the same between the two.
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Old May 13, 2015 | 04:38 PM
  #22  
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tdoug
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Is it 2 quarts per dif? I have an x. Also any benefits from using different weight than the recommended
in the manual? Will be picking it up hopefully tonight or tomorrow to change out.
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Old May 13, 2015 | 10:07 PM
  #23  
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From: Oakley, Ca
Originally Posted by tdoug
Is it 2 quarts per dif? I have an x. Also any benefits from using different weight than the recommended
in the manual? Will be picking it up hopefully tonight or tomorrow to change out.
3 pints is what the differential holds. Buy 2 qts. Stick with the 75W90. I used Mobil in my diff..
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Old May 15, 2015 | 12:10 AM
  #24  
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jmann
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Originally Posted by connoisseurr
If you believe someone when they tell you the fluid is "lifetime" go ride a bicycle.
Every 30k service interval in the service guide says change the transmission fluid except for the 7 speed automatics https://owners.infinitiusa.com/conte...ance-guide.pdf

So is it the consensus that this needs to be done on the 7at or not? Will it harm the 7 speed to change the fluid? I just paid to have this all done in my '11 ex35 which is also a 7 speed, and the dealership gladly took my money to do it. Now I'm wondering if that was a complete waste of cash...
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Old May 15, 2015 | 12:25 AM
  #25  
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From: Oakley, Ca
Originally Posted by jmann
Every 30k service interval in the service guide says change the transmission fluid except for the 7 speed automatics https://owners.infinitiusa.com/conte...ance-guide.pdf

So is it the consensus that this needs to be done on the 7at or not? Will it harm the 7 speed to change the fluid? I just paid to have this all done in my '11 ex35 which is also a 7 speed, and the dealership gladly took my money to do it. Now I'm wondering if that was a complete waste of cash...
It's a "Lifetime" fluid meaning once the transmission goes out that's the life time of the fluid and the transmission. I would highly recommend servicing a transmission about every 60K depending on your driving style and severity of driving ( Stop and go ) The way I look at it is if it has a filter and fluid it's meant to be changed out regularly. If anything you're extending the life of the transmission by restoring the additives in the fluid that have deteriorated.
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Old May 15, 2015 | 10:52 AM
  #26  
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Originally Posted by RickyDgmZ
It's a "Lifetime" fluid meaning once the transmission goes out that's the life time of the fluid and the transmission. I would highly recommend servicing a transmission about every 60K depending on your driving style and severity of driving ( Stop and go ) The way I look at it is if it has a filter and fluid it's meant to be changed out regularly. If anything you're extending the life of the transmission by restoring the additives in the fluid that have deteriorated.
The 7AT doesn't have a filter, a drain plug, or a fill neck/hose.....
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Old May 15, 2015 | 04:08 PM
  #27  
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Originally Posted by jmann
Every 30k service interval in the service guide says change the transmission fluid except for the 7 speed automatics https://owners.infinitiusa.com/conte...ance-guide.pdf

So is it the consensus that this needs to be done on the 7at or not? Will it harm the 7 speed to change the fluid? I just paid to have this all done in my '11 ex35 which is also a 7 speed, and the dealership gladly took my money to do it. Now I'm wondering if that was a complete waste of cash...
I wouldn't characterize it as a waste of cash. It's a hydraulic fluid that is subjected to a pretty punishing environment of heat, friction and shearing forces. It breaks down over time and by having the fluid changed, the additives that help the fluid resist the wear forces it's subjected to, are restored.


Originally Posted by RickyDgmZ
It's a "Lifetime" fluid meaning once the transmission goes out that's the life time of the fluid and the transmission. I would highly recommend servicing a transmission about every 60K depending on your driving style and severity of driving ( Stop and go ) The way I look at it is if it has a filter and fluid it's meant to be changed out regularly. If anything you're extending the life of the transmission by restoring the additives in the fluid that have deteriorated.

The thing is that their definition of "lifetime" is very nebulous and ill-defined. I had it done last year and have had no issues whatsoever. It certainly can't hurt, considering that the cost of a new Jatco 7AT is nearly $9k. $219 bucks to have the dealer change the fluid is cheap in comparison.
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Old May 15, 2015 | 05:13 PM
  #28  
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JakeG37
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I just made an appointment at the Infiniti dealer in Bakersfield to flush my transmission for $249. When I asked for clarification of what they mean by "flushed" he said they had the equipment to hook to the cooling lines to suck out most of the old fluid. Most places I called either don't have the equipment or said they only do drain and fill.

So a Jatco 7AT is almost $9K??? Ouch. I checked on what it would cost for a new 5AT for my 2008 G37s and online its $3500. Crazy that there is that much of a price difference.
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Old May 15, 2015 | 05:23 PM
  #29  
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Originally Posted by twin_snails
I had it done last year and have had no issues whatsoever. It certainly can't hurt, considering that the cost of a new Jatco 7AT is nearly $9k. $219 bucks to have the dealer change the fluid is cheap in comparison.
Thank you, this is what I wanted to hear.
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Old May 15, 2015 | 11:52 PM
  #30  
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Originally Posted by blazeplacid
The 7AT doesn't have a filter, a drain plug, or a fill neck/hose.....
Have you ever been under your vehicle heh. You need consult 2+ or consult 3 to service the transmission. Yes there's a plug on the bottom of your transmission. Its a hydraulic fluid it would be hard to believe that there's no filter inside the transmission. Even power steering has a filter screen and it's a hydraulic fluid as well. Every fluid on every car can be checked and drained.
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