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Finally: Organized F35 transmission fluid thread

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Old Sep 17, 2015 | 03:25 PM
  #176  
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I just called a GM dealer nearby (Canadian) and they had 88862473 in stock, I didn't ask about 88862472 though.
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Old Sep 17, 2015 | 04:11 PM
  #177  
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Originally Posted by Tyman108
just went to GM to get trans fluid for my trans swap, got a LSD TC trans and they told me that the part number 88862472 wasnt in there system but when they looked up an 08 ss/tc the part number was 88862473, i dont know if they updated there oil or not. but looked it up and this is what it is, http://www.acdelcochemicalcatalogue....hp?prod_id=151

anyone have any info on this????
the canadian and american part numbers are different;
You were trying to find an american part number in the canadian system.
Your owners manual would have the correct part number.

I posted a couple above your comment;
Originally Posted by soundjunky
Incase anyone cares;

I just went looking for this stuff;
The Canadian part number does differ from the US part number;
US = 88862472
CND = 88862473

If any mod/admin sees this, it might be worth adding this tidbit tothe first post in this thread - especially since the F35/LNF trans fluid replaces/supercedes the F35/LSJ trans fluid.

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Old Oct 17, 2015 | 10:58 AM
  #178  
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From: CT
06 Cobaltt SS/SC Manual trans fluid

Part No. 21018899
Part Description LUBRICANT
Replaced By 88862472
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Old Oct 21, 2015 | 01:58 PM
  #179  
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From: Mississauga, ON, Canada
Originally Posted by Viperoni
I just called a GM dealer nearby (Canadian) and they had 88862473 in stock, I didn't ask about 88862472 though.
I put the 88862473 fluid into my car a couple weeks ago when I replaced my axles and seals, and overall it didn't change from the ~6month old ~8k mile 88862472 fluid that I drained out of the tranny.
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Old May 15, 2016 | 02:45 PM
  #180  
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I can vouch that RP is not good. I had slight syncho issues before changing to RP and then was immedietly better but after a couple of mo. it got considerably worse. Also developed a leak coming from the input shaft.
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Old May 16, 2016 | 07:28 AM
  #181  
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Use the factory fill. Best gear oil for our trans.

/thread
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Old May 25, 2016 | 03:33 PM
  #182  
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I've been reading this thread and didn't exactly see an answer to this, I have an 06 SS/SC and I'm replacing the transmission. I have 2 quarts of redline mt85, can that be used in my cars transmission or do I need somethin other than that?
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Old May 25, 2016 | 05:14 PM
  #183  
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Originally Posted by ksmith0769
I've been reading this thread and didn't exactly see an answer to this, I have an 06 SS/SC and I'm replacing the transmission. I have 2 quarts of redline mt85, can that be used in my cars transmission or do I need somethin other than that?
PER OP:

8) IF you feel the need to go aftermarket on the fluid, the ONLY fluid I recommend is - Red-Line 75W-90 NS GL-5 Gear Oil, and I ONLY recommend it for the SS/SC guys. You NEED 75W-90 NS, if you plan on using this fluid, because there is regular 75W-90, which has friction modifiers. It does not matter if you have G85 or not. Like I said earlier, our limited-slip is a sealed unit. No fluid you put in there, will see it.

Just go with the LNF fluid
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Old May 27, 2016 | 02:51 PM
  #184  
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Originally Posted by ksmith0769
I've been reading this thread and didn't exactly see an answer to this, I have an 06 SS/SC and I'm replacing the transmission. I have 2 quarts of redline mt85, can that be used in my cars transmission or do I need somethin other than that?
don't use that stuff.
cough up the money, and buy the correct fluid from GM (iirc the LSJ-F35 fluid has been superceded by the LNF-F35 fluid)
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Old Nov 1, 2016 | 12:05 PM
  #185  
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I know this is an old thread, but I just found the GM 88862472 here on Amazon for $16.83/qt, with Prime:

https://www.amazon.com/ACDelco-10-40.../dp/B008BZRI5G
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Old Dec 22, 2016 | 05:44 PM
  #186  
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How comes the TC says it's the MU3 when I drive a SC and it's the MU3? Or do they not matter?
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Old Dec 23, 2016 | 11:07 AM
  #187  
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Originally Posted by stagewtf
How comes the TC says it's the MU3 when I drive a SC and it's the MU3? Or do they not matter?
MU3 was just a production code. Both are technically an F35 transmission, but the TC version has different drive ratio and different axles, different clutch, etc.

They are interchangeable. With a few minor changes.
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Old Feb 10, 2017 | 09:37 PM
  #188  
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I know this old, but there is a typo. On 11. It should say the SS/TC transmission is RPO code MC2 and the SS/SC Transmission RPO code is MU3
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Old Mar 1, 2017 | 09:46 PM
  #189  
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Originally Posted by Viperoni
I just called a GM dealer nearby (Canadian) and they had 88862473 in stock, I didn't ask about 88862472 though.
88862473 is the Canadian part number for the same thing
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Old Mar 25, 2017 | 07:29 AM
  #190  
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I would advise against using GL5 fluid. Yea, it can work but it tends to shorten the life of synchros. Sometimes, GL5 fluid can worsen gear engagement. Nissan has gone through this and I believe Hyundai/Kia. I know my trans in my Xterra is needing serviced. I swapped to Redline MT90 by recommendation, and it actually shifts much better. Yet, the damage is still there. If only you could have seen how sparkly the old fluid was. Sometimes have to drive it like an old truck, hunting for that right gear mesh.
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Old Sep 29, 2018 | 09:00 PM
  #191  
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75-90w ns

07 ss/sc exhaust mods k&n cold air intake. Ok I guess I have to ask the dumb question when you say 75-90 NS gear oil what does the ns stand for. I have looked at lucius full synthetic but is says it has an additive package royal purple has additive can I even use synthetic is that what the ns is for
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Old Sep 30, 2018 | 12:15 AM
  #192  
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ns means no slip, meaning it doesnt have limited slip diff additives. fluids with limited slip additive cannot be used in a transaxle as it causes the syncros to slip on the gear and causes them to be less effective.
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Old Sep 30, 2018 | 12:41 AM
  #193  
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Trans fluid

Thanks for your help. I am having a hell of a time trying to find a fluid I can use at a parta store so I can change the fluid I have 72000 on the car and I dont know if it was ever changed. It had 58000 when I bought it. Oh does the differential fluid ever need changed. I know that the company seems to guaranty their stuff for life. Thanks again for all your help
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Old Sep 30, 2018 | 09:04 PM
  #194  
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Differential fluid in the f35 trans is the same as the trans fluid. They aren't separate as it's part of the trans.
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Old Nov 9, 2018 | 07:46 PM
  #195  
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Originally Posted by bes stroked nova
AMSOIL Manual Transmission & Transaxle Gear Lube 75W-90


so why wont that work? Says the same thing as the GM bottle's, api gl-4

and I just bought a 08 SS/TC last week, changing the fluids and what came out of the trans was red as can be..... I think I am going to go with the amsoil stuff.
I'm late to this but also curious about this? Ive used amsoil galore as well and seems like this meets or exceeds what it should need just like their oil usually does.
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Old Nov 10, 2018 | 11:22 AM
  #196  
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Experts like John Powell recommend using ONLY OEM fluid in the F35 transmission. This is the most current part number and bottle shape. A good dealer has this in stock (even mine does and they plain suck on all other fronts)
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Old Dec 5, 2018 | 03:52 PM
  #197  
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Originally Posted by colodude18
Experts like John Powell recommend using ONLY OEM fluid in the F35 transmission. This is the most current part number and bottle shape. A good dealer has this in stock (even mine does and they plain suck on all other fronts)
Thanks!
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Old Apr 14, 2019 | 01:54 AM
  #198  
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Resurrecting this thread... I have a question; also asked here: https://www.cobaltss.net/forums/2-0l...ml#post7710205

I had to change the driver side axle seal, trying to refill, doesn’t seem I’m getting enough fluid in. Neighborhood Dealership is closed until Monday, autozone no help.

Where do I fill? I found the two plugs on the driver side, tried filling from the upper plug, but I couldn’t get in the amount that came out from the axel seal. Is there a filler plug on the top? Or is the kinda-close tutorial wrong for my transmission? All I can see is a sensor or something on the top of mine; I don’t see an 8mm plug like the two on the side.
2009 Cobalt SS TC, should be F35 MU3, according to the dealership after looking up my VIN’s last 8. Wiki says its the MC2.
Thanks in advance.
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Old Mar 25, 2020 | 08:20 PM
  #199  
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Originally Posted by xxxxsh4d0wxxxx
Well, while I was away, I was still reading around on the forum, and I finally noticed.. Here in the drivetrain section, we don't even have a sticky thread, with given information, for the F35 (SS/SC) transmission fluid, or even for the F35 (SS/TC).

I recently bought the fluid for mine, with not much help from previous threads. I would guess that over 85% of them contained incorrect information. We have people using the wrong fluid, with the wrong additives in the fluid, wrong weight of fluid, wrong amount of fluid, etc.

Also, the How-To that we DO have for the F35 (SS/SC) transmission, was completely incorrect. The OP who made the How-To, used Mobil-1 straight GL in his transmission.

We need to offer correct information for people on this forum who are in search of learning about this car.

On to the information..

1) The F35 (SS/SC) does take a 75W-90, GL-4, transmission fluid.

2) You DO NOT, I cannot make this any clearer, DO NOT, want friction modifiers! The friction modifiers will not allow the synchronizers in the transmission to work properly. This goes for BOTH the SS/SC and the SS/TC.

3) As for the limited-slip.. Ours are sealed. They are "Quaife ATB" differentials, and the lubricant does not affect them. AT ALL! This is why you DO NOT need limited-slip additives! This goes for BOTH the SS/SC and the SS/TC.

3a) *Side note* - This is why the How-To, (On this forum), is incorrect. The OP used 75W-90, WITH limited-slip additives. He is throwing differential gear fluid, in his transmission. The fluid is too slippery for proper synchronizer operation.

4) Even though the F35 comes with GL-4, you might want to use an aftermarket GL-5, if you feel need be. You can, although, make sure it is the correct specs as mentioned above! MOST GL-5's meet or exceed GL-4 specs.

5) The F35, (SS/SC) transmission, comes with fluid part number 21018899.. While The F35, (SS/TC) transmission, comes with fluid part number 88862472.

6) SS/TC guys, I would ABSOLUTELY NOT run anything other than part number 88862472, this is the most current GM fluid for your transmission.

7) SS/SC guys, feel free to use part number 88862472, in fact, I HIGHLY recommend it. It is a 75W-85 GL-4. It is the new "standard", over the old 21018899.

8) IF you feel the need to go aftermarket on the fluid, the ONLY fluid I recommend is - Red-Line 75W-90 NS GL-5 Gear Oil, and I ONLY recommend it for the SS/SC guys. You NEED 75W-90 NS, if you plan on using this fluid, because there is regular 75W-90, which has friction modifiers. It does not matter if you have G85 or not. Like I said earlier, our limited-slip is a sealed unit. No fluid you put in there, will see it.

9) DO NOT use Royal Purple, or any of that synchromesh garbage. Either stick with the 2 factory numbers I provided, or the Red-Line fluid. NO IF'S AND'S OR BUT'S!!

10) The transmission fluid should be changed around, in my opinion, 60k. As for the amount, you will need to buy 2 quarts. However, it will only take 1.7 quarts.

11) The code for the SS/SC transmission is F35-MC2. The code for the SS/TC transmission is F35-MU3.

Feel free to ask questions. I believe everything has been clearly answered, though.
Hey boss great post. Luckily I found it while trying to find info on my transmission. I just bought an 06 Cobalt SS Sc and can't even find the caps to replace trany fluid. Could you send me in the right direction? please and thank you. So far I've done my oil change cleaned out throttle body which looks like I may need to replace do it it sitting in an open and a wild idle on start up. I also replaced me intercooler pump. However I have not been able to even find info on my transmission to get the fluid filled or replaced. Thanks for your time.
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Old Jun 20, 2020 | 02:08 PM
  #200  
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Originally Posted by xxxxsh4d0wxxxx
Well, while I was away, I was still reading around on the forum, and I finally noticed.. Here in the drivetrain section, we don't even have a sticky thread, with given information, for the F35 (SS/SC) transmission fluid, or even for the F35 (SS/TC).

I recently bought the fluid for mine, with not much help from previous threads. I would guess that over 85% of them contained incorrect information. We have people using the wrong fluid, with the wrong additives in the fluid, wrong weight of fluid, wrong amount of fluid, etc.

Also, the How-To that we DO have for the F35 (SS/SC) transmission, was completely incorrect. The OP who made the How-To, used Mobil-1 straight GL in his transmission.

We need to offer correct information for people on this forum who are in search of learning about this car.

On to the information..

1) The F35 (SS/SC) does take a 75W-90, GL-4, transmission fluid.

2) You DO NOT, I cannot make this any clearer, DO NOT, want friction modifiers! The friction modifiers will not allow the synchronizers in the transmission to work properly. This goes for BOTH the SS/SC and the SS/TC.

3) As for the limited-slip.. Ours are sealed. They are "Quaife ATB" differentials, and the lubricant does not affect them. AT ALL! This is why you DO NOT need limited-slip additives! This goes for BOTH the SS/SC and the SS/TC.

3a) *Side note* - This is why the How-To, (On this forum), is incorrect. The OP used 75W-90, WITH limited-slip additives. He is throwing differential gear fluid, in his transmission. The fluid is too slippery for proper synchronizer operation.

4) Even though the F35 comes with GL-4, you might want to use an aftermarket GL-5, if you feel need be. You can, although, make sure it is the correct specs as mentioned above! MOST GL-5's meet or exceed GL-4 specs.

5) The F35, (SS/SC) transmission, comes with fluid part number 21018899.. While The F35, (SS/TC) transmission, comes with fluid part number 88862472.

6) SS/TC guys, I would ABSOLUTELY NOT run anything other than part number 88862472, this is the most current GM fluid for your transmission.

7) SS/SC guys, feel free to use part number 88862472, in fact, I HIGHLY recommend it. It is a 75W-85 GL-4. It is the new "standard", over the old 21018899.

8) IF you feel the need to go aftermarket on the fluid, the ONLY fluid I recommend is - Red-Line 75W-90 NS GL-5 Gear Oil, and I ONLY recommend it for the SS/SC guys. You NEED 75W-90 NS, if you plan on using this fluid, because there is regular 75W-90, which has friction modifiers. It does not matter if you have G85 or not. Like I said earlier, our limited-slip is a sealed unit. No fluid you put in there, will see it.

9) DO NOT use Royal Purple, or any of that synchromesh garbage. Either stick with the 2 factory numbers I provided, or the Red-Line fluid. NO IF'S AND'S OR BUT'S!!

10) The transmission fluid should be changed around, in my opinion, 60k. As for the amount, you will need to buy 2 quarts. However, it will only take 1.7 quarts.

11) The code for the SS/SC transmission is F35-MC2. The code for the SS/TC transmission is F35-MU3.

Feel free to ask questions. I believe everything has been clearly answered, though.
is it ok to use the MT 90 from ZZPerformance i ordered the MT 90 from them
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