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DIY: G37 Automatic Transmission Fluid Change, Pan Drop/Clean

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DIY: G37 Automatic Transmission Fluid Change, Pan Drop/Clean

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Old 02-09-2018, 01:22 AM
  #226  
davison0976
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Hi All, just wanted to post this video by Scotty on the subject of LIFETIME automatic transmission fluids.

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Old 02-09-2018, 01:27 AM
  #227  
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Originally Posted by davison0976 View Post
Hi All, just wanted to post this video by Scotty on the subject of LIFETIME automatic transmission fluids.

https://www.youtube.com/watch?v=RuNNqh8-jkw
Great video! Learned a few things from the video. Thank you Davison
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Old 02-18-2018, 08:58 PM
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Thanks for this write-up! I just finished the 3x drain and refill, although I should have gotten a 4th gallon. Only wound up pushing about 11qts through, but the car shifts much nicer now, and that fluid was nasty at 66,000 miles. I did use the DIY fluid pump which made the job much easier.

I wanted to post this to help save some other members a little money. The fill adapter can be replaced with this hose barb

Hose barb

in between fills while the car was running for 3 minutes, I used a 3" piece of hose (same hose that the diy fluid pump uses) that was plugged with a bolt to keep fluid from leaking, and then I didn't have to keep swapping the fill plug with the barb. Thanks again for the great write up! Transmissions have always been something I've stayed away from, but this helped me tackle it and save money from the dealership
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Old 02-19-2018, 10:28 AM
  #229  
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Glad it worked out well, and always best to get to know your car a little better along the way
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Old 02-25-2018, 05:56 PM
  #230  
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Originally Posted by jfridge92 View Post
Thanks for this write-up! I just finished the 3x drain and refill, although I should have gotten a 4th gallon. Only wound up pushing about 11qts through, but the car shifts much nicer now, and that fluid was nasty at 66,000 miles. I did use the DIY fluid pump which made the job much easier.

I wanted to post this to help save some other members a little money. The fill adapter can be replaced with this hose barb

Hose barb

in between fills while the car was running for 3 minutes, I used a 3" piece of hose (same hose that the diy fluid pump uses) that was plugged with a bolt to keep fluid from leaking, and then I didn't have to keep swapping the fill plug with the barb. Thanks again for the great write up! Transmissions have always been something I've stayed away from, but this helped me tackle it and save money from the dealership
Awesome suggestion on the hose barb. I'll definitely use this idea next time. Will make things a lot easier. I'll just clamp the hose in between drain/fill steps and remove the hose barb at the very end when setting the fluid level replacing it with the plug. Thank you for posting and sharing your experience!
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Old 04-23-2018, 07:46 PM
  #231  
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Originally Posted by davison0976 View Post
Just when I thought I was done with engine oil UOAs to determine I want to run Castrol Edge 0w40 going forward, I think I got myself involved into ATF UOAs.

The results have just came in and here is the UOA for the ATF I had drained. Multiplying wear numbers by 5.09 (32000/6282) gives results close to the universal average numbers. There is nothing exciting in the numbers, they are just average. Nevertheless, it will be a good reference point in the future, especially comparing Matic-S to Amsoil Fuel-Efficient ATF.




Here are Matic-S UOA results posted on BITOG by someone else
2005 G35 Nissan Matic S 41k Jatco RE5RO5A Gear & Transmission Used/Virgin Oil Analysis Bob Is The Oil Guy
Hey, thank you for this awesome post! Have you had the chance to compare Amsoil and Matic S wear numbers? Please let us know as that information can be very very helpful!
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Old 05-04-2018, 08:26 AM
  #232  
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Did this last night. Thank You Davison0976.
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Old 05-04-2018, 02:56 PM
  #233  
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Glad I found this post, I still need to do my, just hit 105k miles.
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Old 05-11-2018, 01:25 AM
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Walmart has really good deal on the Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid ATF, 1 Gallon

4 for only $71.48.
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Old 05-11-2018, 02:00 AM
  #235  
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Originally Posted by Stachuu View Post
Walmart has really good deal on the Valvoline MaxLife Multi-Vehicle Automatic Transmission Fluid ATF, 1 Gallon

4 for only $71.48.

Fleet Farm also has a really good deal! 15$ per gallon at my local fleet farm.
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Old 05-20-2018, 01:37 PM
  #236  
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Mechanic overfilled my auto transmission

Hey guys hows everyone doing? About 1 year ago the line from the transmission to the radiator come off and a lot of the trans fluid leaked out. Causing my car not to run. At that time I was clueless and worried so a friend recommended a guy. He told me the car had no fluid because most of it leaked out. So I bought the fluid and he put it in. The car drives fine shifting like normal. But whenever I drive my G hard the car starts to smoke a lot from the transmission. Can you guys please give me some advise on how I can get rid of the excess fluid?
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Old 05-20-2018, 02:41 PM
  #237  
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I would go ahead and perform the full 3x drain & fill detailed in the first section of this thread including dropping the pan for a cleaning.


If you don't feel that you or a friend could do this I'd go to a Nissan dealer and have them perform the service, not a flush though, just the service listed in the FSM.


As far as how to get the fluid to the proper level, it's in the first section of this thread.
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Old 05-23-2018, 09:35 PM
  #238  
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Just saw this link with an excel spreadsheet that can calculate the percentage of new fluid in a transmission flush. Helpful to know how much of the old fluid is still in your mix after 3x drain & fill

https://www.bobistheoilguy.com/forum...tial_Drain_CAL
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Old 06-09-2018, 08:56 PM
  #239  
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I got this done at the dealership. According to the receipt they only used 4 qt of ATF. Oh well car shifts fine.
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Old 06-24-2018, 09:28 AM
  #240  
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Originally Posted by Helikido View Post
Hey, thank you for this awesome post! Have you had the chance to compare Amsoil and Matic S wear numbers? Please let us know as that information can be very very helpful!

Hey Helikido. I did collect Amsoil ATF sample during the last drain and fill, and it had been sitting on the shelf for almost a year. So, I sent it to Blackstone Labs yesterday, after seeing your post a couple of days prior. Let's give it probably until early next week to get the results.
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