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A8 Transmission Question

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Old Jun 24, 2021 | 12:39 PM
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Default A8 Transmission Question

Haven’t had a problem with my 2019 Stingray yet but have a question on Lubeguard. Is it a permanent fix or a stop gap measure? Should I put some in the transmission even though it doesn’t have a problem as of now?
Thanks for your advice.
Walt
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Old Jun 24, 2021 | 12:45 PM
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Here is the thread about Lubeguard.https://www.corvetteforum.com/forums...und-1-a-6.html

My advice - don't fix it if it is not broke.Skip the Lubeguard. I do advise buying the Range if you don't have it. I also advice to get the blue label fluid (triple flush) if your car was built before GM starting using the blue label fluid.
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Old Jun 24, 2021 | 12:54 PM
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What was the date GM started using blue label transmission fluid?
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Old Jun 24, 2021 | 08:16 PM
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February 2019. When GM started using the new transmission oil.So all before that.
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Old Jun 24, 2021 | 08:21 PM
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Thanks for the information.
Walt
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Old Jun 25, 2021 | 07:57 AM
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Default angled hose pliers

I agree 100% with Flame-Red.
He has a lot of info on the subject and how-to's.
I had no problems with my 2017 but changed the fluid twice, myself. I could have had it done but don't want a service report saying my car had a shudder problem when it didn't.

FYI: I bought angle hose pliers at harbor freight that helps getting the plug out and then back in.

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Old Jun 25, 2021 | 08:26 AM
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Best solutions.

No Lubeguard

Blue label ATF

Tune our AFM or Range.

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Old Jun 25, 2021 | 11:39 PM
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Originally Posted by DD04C5
February 2019. When GM started using the new transmission oil.So all before that.
The service bulletins are dated Feb 2018 and Apr 2018, so I assumed that was when the new fluid was the factory fill.
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Old Jun 26, 2021 | 12:06 AM
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I've also changed the fluid several times on my C6 and modified HF 80 degree long nose pliers to fit and pull/replace the plug. Then siphon out as much of the fluid as possible before pulling the pan.

Oh yeah. almost forgot. Stick with the latest GM fluid and no additives. If it's not broke, don't try to fix it until it does break.

Last edited by HOXXOH; Jun 26, 2021 at 12:20 AM.
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Old Jun 26, 2021 | 12:15 AM
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Originally Posted by HOXXOH
The service bulletins are dated Feb 2018 and Apr 2018, so I assumed that was when the new fluid was the factory fill.
No Sir, 2/1/19 build date forward. The very last TSB is 4/20
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