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Old 03-10-2022, 09:56 AM   #1
hakank14
 
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Drives: 2022 Camaro 2SS 1LE M6
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Trans fluid for SS 1LE M6

Uggh, I know this has been beaten to death - but I am considering changing the transmission fluid at or around the 1500 mile mark. I'm convinced that the OEM tranny fluid sucks ass. Based on past reviews from other owners, I've pretty much narrowed it down to either the AMSOIL Signature Series ATF or the Redline D4 ATF. I use AMSOIL for the engine oil and am happy with it, so my initial lean is towards the AMSOIL - but I'm seeing a lot of Corvette owners are big on the Redline D4. I don't plan on tracking it much, I'm more concerned about smooth shifting for daily driving. Just interested in hearing which one is more preferred and why? Thanks!
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Old 03-10-2022, 10:08 AM   #2
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Quote:
Originally Posted by hakank14 View Post
Uggh, I know this has been beaten to death - but I am considering changing the transmission fluid at or around the 1500 mile mark. I'm convinced that the OEM tranny fluid sucks ass. Based on past reviews from other owners, I've pretty much narrowed it down to either the AMSOIL Signature Series ATF or the Redline D4 ATF. I use AMSOIL for the engine oil and am happy with it, so my initial lean is towards the AMSOIL - but I'm seeing a lot of Corvette owners are big on the Redline D4. I don't plan on tracking it much, I'm more concerned about smooth shifting for daily driving. Just interested in hearing which one is more preferred and why? Thanks!
I've always had good experiences with Redline products. I use Redline oil, transmission fluid, differential fluid and power steering fluid in my 2003 350Z. I've had that car now for going on 20 years and been using Redline products in it for at least the last 10 years.

When it comes time to change the transmission and differential fluids in the 1LE I'll certainly look at Redline first. Of course both of my cars are manuals, not automatics.
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Old 03-10-2022, 10:10 AM   #3
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i used the oem stuff last year for first time was going to use the tremec stuff but its $$$
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Old 03-10-2022, 11:21 AM   #4
hakank14
 
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Meanwhile, if you actually go to the AMSOIL site and search by vehicle - AMSOIL Torque-Drive ATF is what is listed as the recommended tranny fluid for the LT1.
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Old 03-10-2022, 11:26 AM   #5
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I have heard others speak very highly of Mobil 1 Synthetic LV ATF HP.
When I change mine here soon, that is what I'm going to use. My 1-2 shift is pretty stiff when the car is cold.
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Old 03-10-2022, 11:26 AM   #6
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Amsoil is a supplier of oil to Chevy most likely that's what is in the trans now.
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Old 03-10-2022, 11:46 AM   #7
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redline for me was hard to shift while car was cold, took a good warmup / quick drive for it to feel better, i ended up swapping back to OEM stuff, might try the amsoil here soon.
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Old 03-10-2022, 12:06 PM   #8
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Quote:
Originally Posted by MP3BOOSTED View Post
redline for me was hard to shift while car was cold, took a good warmup / quick drive for it to feel better, i ended up swapping back to OEM stuff, might try the amsoil here soon.

Yup, here as well. Fine once warmed up but a bit stiff and notchy when cold.
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Old 03-10-2022, 12:11 PM   #9
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I use the redline in mine, no issues at all.
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Old 03-10-2022, 12:17 PM   #10
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Quote:
Originally Posted by BrandanK View Post
I have heard others speak very highly of Mobil 1 Synthetic LV ATF HP.
When I change mine here soon, that is what I'm going to use. My 1-2 shift is pretty stiff when the car is cold.
Who has used that in the M6?
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Old 03-10-2022, 12:28 PM   #11
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I used Amsoil, a much better shift feel over the stock fluid.
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Old 03-10-2022, 01:54 PM   #12
hakank14
 
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Quote:
Originally Posted by hakank14 View Post
Meanwhile, if you actually go to the AMSOIL site and search by vehicle - AMSOIL Torque-Drive ATF is what is listed as the recommended tranny fluid for the LT1.
I stand corrected, the Signature Series and Torque-Drive are both listed for the LT1
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Old 03-10-2022, 01:57 PM   #13
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I tried redline and also found it notchier than OE until it gets nice and warm. I'm planning on OE or Tremec fluid next since I've heard good things about it.

https://www.tremec-store.com/product...smission-fluid
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Old 03-10-2022, 05:34 PM   #14
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OEM sucks, sucks harder when it's cold. I've tried Mobil1, Redline D4 and Royal Purple Syncromax (all better than OEM) but the Syncromax is the smoothest shifting 1 - 2 and everywhere in between. You can get a six quart case on Amazon for under $100, takes just under four.
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