1LE SS manual transmission fluid suggestions - Page 3

OVRKLL · 04-17-2019, 06:40 AM

Glad I found this thread, as I was driving home yesterday I noticed the 1st - 2nd didn't feel smooth in my opinion.
I knew Amsoil had a trans fluid as I've tried it in the past, as well as Redline.
Both of these oils were use on a lot in the BMW world.

I used Amsoil in my 911 after a rebuild and it worked great...clickity click shifting. However, what they have on their website now does not look like what I used...then again it was a heavier oil too.

I may need to check out the RP oil now...got some fluid changing to do!

thescreensavers · 04-17-2019, 08:26 AM

I was happy with the OEM fluid but, after a few track days I flushed it out with D4 and there has been a noticeable improvement at elevated temps on the track.

Jimbeau11 · 04-17-2019, 10:07 AM

I've always used Mobil 1 synthetic ATF in my C5Z. Thoughts?

internationlriders · 04-17-2019, 02:29 PM

Redline D4, drained through the sensor plug location as well. Way smoother shifts when cold.

carguy55 · 04-18-2019, 07:46 PM

GM fluid was terrible. Switched to Redline D4 ATF and all is good

Chevy1LE · 04-20-2019, 10:15 PM

Quote:

Originally Posted by Jimbeau11

I've always used Mobil 1 synthetic ATF in my C5Z. Thoughts?

I have used Mobil 1 in my other vehicles as well. Also would like to know if anyone using it in the SS 1LE or reason not? Is the refill (4) qts?

MatthewAMEL · 04-21-2019, 12:04 AM

Redline D4

Tommy G · 04-21-2019, 05:34 AM

I spoke with a Tremec rep at a car show about fluid, and he recommended their own brand of fluid. He said it was introduced last year. Has anyone tried it?

https://www.tremec-store.com/collect...smission-fluid

SSDan · 04-21-2019, 07:50 AM

I switched out to RP Syncromax about 1000 miles ago. At first I wasn't sure if I got a big improvement. But now I am glad I made the change. The shifts are less notchy now especially the 1-2 and the 2-3 which were sometimes annoying with the OEM fluid.

Boost Creep · 04-21-2019, 11:01 AM

Quote:

Originally Posted by SSDan

I switched out to RP Syncromax about 1000 miles ago. At first I wasn't sure if I got a big improvement. But now I am glad I made the change. The shifts are less notchy now especially the 1-2 and the 2-3 which were sometimes annoying with the OEM fluid.

Completely changed the feel of my shifts, in a good way.
So much so, I'm going to stock my garage cabinet with some RP for future fluid changes.

metros11 · 04-23-2019, 09:58 PM

I just swapped out to the Redline D4 ATF. On cold mornings the 1st and 2nd gear is still notchy. Once it warms up it's all good.

Rekkless · 02-26-2020, 03:03 PM

How much oil does the 1LE gear box take?

KuroOkami · 02-26-2020, 05:17 PM

Quote:

Originally Posted by Rekkless

How much oil does the 1LE gear box take?

Capacities: TR6060 10.4 pints With oil cooler.
TR6060 7.4 pints Without oil cooler.

Warrior102 · 02-26-2020, 05:20 PM

Quote:

Originally Posted by Rekkless

How much oil does the 1LE gear box take?

Just drained the Royal Purple Syncromax this weekend and installed Mobil1 multi vehicle syn ATF. Back story, I swapped the OEM oil at 1600 miles as it shifted horribly in colder temps, the RP was well regarded and was a huge improvement, for awhile. I'm now at 17K miles and it has seemed to shear out of grade as shifting was getting crunchy in all gears. The Mobil1 has restored the smooth shifting, we'll see how long this lasts.

To answer your question it's just under four quarts, some is retained in the cooler.

04-17-2019, 06:40 AM	#29
OVRKLL Drives: 2017 1SS 1LE...makes me go YeeeHaw! Join Date: Mar 2012 Location: Austin, TX Posts: 577	Glad I found this thread, as I was driving home yesterday I noticed the 1st - 2nd didn't feel smooth in my opinion. I knew Amsoil had a trans fluid as I've tried it in the past, as well as Redline. Both of these oils were use on a lot in the BMW world. I used Amsoil in my 911 after a rebuild and it worked great...clickity click shifting. However, what they have on their website now does not look like what I used...then again it was a heavier oil too. I may need to check out the RP oil now...got some fluid changing to do! __________________ The Thrill isn't around the corner, the Thrill is the corner! So don't hesitate, just brake late!

04-17-2019, 02:29 PM	#32
internationlriders Drives: 2017 SS 1LE Join Date: Feb 2017 Location: Calgary AB Posts: 135	Redline D4, drained through the sensor plug location as well. Way smoother shifts when cold. __________________ I'm just a car addict looking for a group of alcohol enthusiasts. "The Lord is my shepherd; I shall not want."

04-21-2019, 12:04 AM	#35
MatthewAMEL Drives: 2023 CT5 Blackwing Join Date: Sep 2016 Location: Orlando Posts: 1,617	Redline D4 __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6

04-21-2019, 07:50 AM	#37
SSDan Drives: 2016 1SS 6MT NPP Join Date: Feb 2010 Location: Lake Murray, SC Posts: 2,243 View My Garage	I switched out to RP Syncromax about 1000 miles ago. At first I wasn't sure if I got a big improvement. But now I am glad I made the change. The shifts are less notchy now especially the 1-2 and the 2-3 which were sometimes annoying with the OEM fluid. __________________ 2016 Camaro 1SS Hyper Blue 6MT NPP 2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold)

04-17-2019, 08:26 AM	#30
thescreensavers Drives: SW 1SS 1LE / Jeep XJ Join Date: Mar 2016 Location: WPB,FL Posts: 799	I was happy with the OEM fluid but, after a few track days I flushed it out with D4 and there has been a noticeable improvement at elevated temps on the track.

04-17-2019, 10:07 AM	#31
Jimbeau11 Drives: '18 Black SS 1LE; '01 Corvette Z06 Join Date: Nov 2018 Location: Lehigh Valley, PA Posts: 119	I've always used Mobil 1 synthetic ATF in my C5Z. Thoughts?

04-18-2019, 07:46 PM	#33
carguy55 Drives: 2018 1SS 1LE Join Date: Feb 2017 Location: Austin, Texas Posts: 1,487 View My Garage	GM fluid was terrible. Switched to Redline D4 ATF and all is good

04-21-2019, 05:34 AM	#36
Tommy G Drives: 18 1LE/1SS, 08 G8 GT, 13 GTI Join Date: May 2017 Location: Davenport, IA Posts: 56	I spoke with a Tremec rep at a car show about fluid, and he recommended their own brand of fluid. He said it was introduced last year. Has anyone tried it? https://www.tremec-store.com/collect...smission-fluid

04-23-2019, 09:58 PM	#39
metros11 Drives: 2018 SS 1LE Join Date: Apr 2017 Location: North Jersey Posts: 776	I just swapped out to the Redline D4 ATF. On cold mornings the 1st and 2nd gear is still notchy. Once it warms up it's all good.

02-26-2020, 03:03 PM	#40
Rekkless Drives: Carmaro SS 1LE Join Date: Dec 2019 Location: Montreal, Canada Posts: 21	How much oil does the 1LE gear box take?

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