Originally Posted by jmfselu

just ordered two quarts of the 88862472 trans oil from CED. Can not wait to change out fluids. I'm almost at 70k miles so im expecting SOME sort of result, wether big or small.
I also wanted to thank CED for having excellent customer service. I apparently input an incorrect digit regarding my credit card information. They called a few hours later and asked if i would check my card to make sure i didnt make a mistake. Sure enough i did, and they fixed it right away and shipped out my product the same day i ordered.

Originally Posted by Knightwolf

Ok.. I have a question:
OP stated:
"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."
Why is the Red-Line oil only recommended for the SS/SC guys?? I thought Red Line was better than factory specs, no?
I haven't changed mine yet, but I plan to this spring, so I'd like this cleared up before I go out n buy the Red Line oil.

Originally Posted by svt

Just like anything else that's aftermarket... use at your own risk. If your transmission blows up after you put aftermarket fluid in and the dealership sees it, your warranty work would be null and void.

Spend some extra cash (or less cash) to buy something that was designed by the manufacturer for your specific application.

Originally Posted by xxxxsh4d0wxxxx

Shouldn't be - No. Not in that short of a life-span. Did you check the roll pins? Or verify all of the linkages are connect correctly, nothing visually is broken? The shifter assembly on the top of the trans functions properly?

Originally Posted by gotboost?17

this is probley common sense but what every tranny fluide u took out, has to be replaced? an how do u chech when its full? first time for everything :-)

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.

Originally Posted by frankenbalt

OK so **** is still not cleared up i read through every comment and half said to fill from the port near the drain plug and the half said to fill up top by the fuse box and fill till spills out of the bottom fill....

WHAT IS THE CORRECT WAY TO FILL THE TRANSMISSION?? DOES ANYONE KNOW???

Originally Posted by EXsoccer1921

just came across this actually..


#9. why no royal purple?