2013 LS M6 rear diff fluid - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

awdmofo · 01-22-2018, 01:12 PM

I have 76k miles on my 13 V6 6-speed manual Camaro. I believe the rear diff fluid is recommended by GM to be replaced at 60K. Has anyone done it before and what fluid was used? I don't mind paying for the high price of GM fluid, just not sure if there is another aftermarket that is recommended for my car. After some tuning, more bolt on parts I'd assume the HP would be in the 380-390 range (flywheel not to the wheels). Any help would be great, thanks!

ChibiBlackSheep · 01-22-2018, 02:30 PM

You should have done this fluid about 70,000 miles ago. That stock stuff was DISGUSTING after a few thousand miles.

I change mine every other spring, it's super easy to do. You'll need 1qt of 75w-90 gear oil and a bottle of GM posi fluid. (https://www.amazon.com/Genuine-88900.../dp/B0028CMPIS)

You should do the transmission fluid at the same time. It uses the same 75w-90 fluid that you decide to use in the diff. You'll need about 2qts for the trans.

I went with Mobil 1. You can choose whatever full-synthetic 75w-90 that you want.

In the end, your check-list would be:
3 qts of 75w-90 gear oil. (4 if you want to be on the safe side and might spill some)
4oz of GM additive
1 pump to move the oil.

chevyderek72 · 01-22-2018, 07:41 PM

I used Mobil 1 gear oil and just did mine today. Ramps on the rear and jackstands for the front. Both axle and tranny were easy but a learning experience. 3 quarts filled both perfect with the friction modifier for the axle.

1Coopgt · 01-23-2018, 05:46 PM

I used Royal Purple. Had the Diff and Tranny done at the same time.

DSX_Camaro · 01-24-2018, 06:20 PM

I prefer Redline GL5 75W-90 for my trans and differential. Works like a charm.

zoutlawss · 01-24-2018, 06:33 PM

Quote:

Originally Posted by 1Coopgt

I used Royal Purple. Had the Diff and Tranny done at the same time.

I second the Royal Purple and did it myself. easy job

Avenging Orange · 01-26-2018, 09:14 AM

Lucas non-synthetic.

And it's never to late to change it.

awdmofo · 01-28-2018, 01:55 PM

Quote:

Originally Posted by ChibiBlackSheep

You should have done this fluid about 70,000 miles ago. That stock stuff was DISGUSTING after a few thousand miles.

I change mine every other spring, it's super easy to do. You'll need 1qt of 75w-90 gear oil and a bottle of GM posi fluid. (https://www.amazon.com/Genuine-88900.../dp/B0028CMPIS)

You should do the transmission fluid at the same time. It uses the same 75w-90 fluid that you decide to use in the diff. You'll need about 2qts for the trans.

I went with Mobil 1. You can choose whatever full-synthetic 75w-90 that you want.

In the end, your check-list would be:
3 qts of 75w-90 gear oil. (4 if you want to be on the safe side and might spill some)
4oz of GM additive
1 pump to move the oil.

Sheep, great info thanks as always

. I was thinking of just getting https://www.amazon.com/ACDelco-10-40...lon+oil+75w-90 since its original to the car. Thoughts? I don't mind spending a little more to keep the fluids the way the engineers meant it you know. Im afraid what the rear diff will look like when I drain it

. might pump some fluid through the diff to catch any nasty stuff in there before I fill it up, thought for the price just get a gallon.

awdmofo · 01-28-2018, 02:00 PM

Quote:

Originally Posted by 1Coopgt

I used Royal Purple. Had the Diff and Tranny done at the same time.

switching to Royal purple for the engine oil next oil change, used it on my turbo toyotas and stock tacoma and loved it. Never used any other fluids of theirs though, i imagine its good stuff.

Quote:

Originally Posted by DSX_Camaro

I prefer Redline GL5 75W-90 for my trans and differential. Works like a charm.

My buddy i believe is a distributor for them, might look into redline.

Quote:

Originally Posted by Avenging Orange

Lucas non-synthetic.

And it's never to late to change it.

they make non-synthetic?

ChibiBlackSheep · 01-28-2018, 03:20 PM

Quote:

Originally Posted by awdmofo

Sheep, great info thanks as always

. I was thinking of just getting https://www.amazon.com/ACDelco-10-40...lon+oil+75w-90 since its original to the car. Thoughts? I don't mind spending a little more to keep the fluids the way the engineers meant it you know. Im afraid what the rear diff will look like when I drain it

. might pump some fluid through the diff to catch any nasty stuff in there before I fill it up, thought for the price just get a gallon.

Not a bad deal, and nothing wrong with sticking to ACDelco. Honestly just keep up on swapping this fluid out, you will see how easy it is to do, and just do it every other year or at least every 30,000 miles.

As long as your rear-end isn't howling, you shouldn't need to do a "flush" to it. Just make sure you clean the magnet well, and do a few figure-8s after you put the diff fluid in to get it moving all around.

And make sure you wear gloves and hold your breath... this stuff stinks!

bkevind · 01-28-2018, 04:34 PM

I've been putting this off for a year. Thinking it would be hard and messy.

Just did it yesterday on my SS M6, trans and diff. Super easy. Hardest part is getting the car up on jackstands, then operating the little pump I bought to pump in the new juice to my transmission. It was a little messy, but that was my bad for missing the mark to catch the trans fluid

I had to use ATF for the SS M6 trans fluid, I used amsoil for that. I used Mobile 1 75-90 LS for the diff, with a little GM ls additive.

Wow, shifting is much improved, very much needed. I'm still not thrilled with the diff performance, but at least I know the fluid is fresh. I had the usual accumulation of metal on the magnetic plugs. I've got an eaton truetrack waiting to go in when I find a good shop to do it.

bkevind · 01-28-2018, 04:37 PM

Quote:

Originally Posted by ChibiBlackSheep

...
And make sure you wear gloves and hold your breath... this stuff stinks!

You're not kidding. That was some funky smelling stuff.

My 9 year old was "assisting" me in the garage and he was gagging from the smell. But he stuck it out

awdmofo · 03-11-2018, 10:04 PM

Quote:

Originally Posted by bkevind

I've been putting this off for a year. Thinking it would be hard and messy.

Just did it yesterday on my SS M6, trans and diff. Super easy. Hardest part is getting the car up on jackstands, then operating the little pump I bought to pump in the new juice to my transmission. It was a little messy, but that was my bad for missing the mark to catch the trans fluid

I had to use ATF for the SS M6 trans fluid, I used amsoil for that. I used Mobile 1 75-90 LS for the diff, with a little GM ls additive.

Wow, shifting is much improved, very much needed. I'm still not thrilled with the diff performance, but at least I know the fluid is fresh. I had the usual accumulation of metal on the magnetic plugs. I've got an eaton truetrack waiting to go in when I find a good shop to do it.

Yea it's time for me to do it, with school and work and life i'm neglecting the car I spent soo much to buy 11 months ago

. I got the GM additive from Amazon for cheap, but I've been reading that most of the 75w90 gear oils have the friction modifier already in them. Did the mobile 1 have it in it? Was thinking of redline, amsoil or royal purple for the trans....

TWOFORTYZ · 03-17-2018, 07:04 PM

Quote:

Originally Posted by awdmofo

switching to Royal purple for the engine oil next oil change, used it on my turbo toyotas and stock tacoma and loved it. Never used any other fluids of theirs though, i imagine its good stuff.

My buddy i believe is a distributor for them, might look into redline.

they make non-synthetic?

I've had two friends spin rod bearings with royal purple. I'll never waste money on it. Redline all day for me.

01-22-2018, 01:12 PM	#1
awdmofo V6 banger Drives: 2016 Lexus CT200H Join Date: Apr 2017 Location: Anaheim CA Posts: 158	2013 LS M6 rear diff fluid I have 76k miles on my 13 V6 6-speed manual Camaro. I believe the rear diff fluid is recommended by GM to be replaced at 60K. Has anyone done it before and what fluid was used? I don't mind paying for the high price of GM fluid, just not sure if there is another aftermarket that is recommended for my car. After some tuning, more bolt on parts I'd assume the HP would be in the 380-390 range (flywheel not to the wheels). Any help would be great, thanks! __________________ 2016 CT200h (daily) 2017-2020 V6 (currently looking to buy) 2013 LS 6-speed (SOLD) Elite E2 catch can, CAI intake, 2.5" SLP Loudmouth II mufflers with no resonators with an X pipe, Kenny Racing ported TB, Jacfab spacer and ported manifold and Accelerated Racing E85 octane dyno tune = 300WHP Special Thanks to... Jason@JacFab, ChibBlackSheep, Kenny Racing & Accelerated Racing (use to be in) Rancho Cucamonga CA.

01-22-2018, 02:30 PM	#2
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,093	You should have done this fluid about 70,000 miles ago. That stock stuff was DISGUSTING after a few thousand miles. I change mine every other spring, it's super easy to do. You'll need 1qt of 75w-90 gear oil and a bottle of GM posi fluid. (https://www.amazon.com/Genuine-88900.../dp/B0028CMPIS) You should do the transmission fluid at the same time. It uses the same 75w-90 fluid that you decide to use in the diff. You'll need about 2qts for the trans. I went with Mobil 1. You can choose whatever full-synthetic 75w-90 that you want. In the end, your check-list would be: 3 qts of 75w-90 gear oil. (4 if you want to be on the safe side and might spill some) 4oz of GM additive 1 pump to move the oil. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

01-23-2018, 05:46 PM	#4
1Coopgt Drives: All Black 2012 1LS Join Date: Feb 2015 Location: Rochester,NY Posts: 2,042 View My Garage	I used Royal Purple. Had the Diff and Tranny done at the same time. __________________ Mods, K&N CAI ,VTC , GM Perf Axleback Exhaust, Elite Eng CC and CSS, GM Strut Tower Brace,Carbon Fiber Anvil Spoiler,ASC T5 Splitter,Gen5diy Foglight kit.

01-24-2018, 06:20 PM	#5
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	I prefer Redline GL5 75W-90 for my trans and differential. Works like a charm. __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

01-26-2018, 09:14 AM	#7
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Lucas non-synthetic. And it's never to late to change it. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

01-22-2018, 07:41 PM	#3
chevyderek72 Drives: 2014 2LT RS Join Date: Jan 2016 Location: Cottonwood, AZ Posts: 11	I used Mobil 1 gear oil and just did mine today. Ramps on the rear and jackstands for the front. Both axle and tranny were easy but a learning experience. 3 quarts filled both perfect with the friction modifier for the axle.

01-28-2018, 04:34 PM	#11
bkevind Drives: 2013 2SS RS 1LE Join Date: Aug 2016 Location: Austin Posts: 555 View My Garage	I've been putting this off for a year. Thinking it would be hard and messy. Just did it yesterday on my SS M6, trans and diff. Super easy. Hardest part is getting the car up on jackstands, then operating the little pump I bought to pump in the new juice to my transmission. It was a little messy, but that was my bad for missing the mark to catch the trans fluid I had to use ATF for the SS M6 trans fluid, I used amsoil for that. I used Mobile 1 75-90 LS for the diff, with a little GM ls additive. Wow, shifting is much improved, very much needed. I'm still not thrilled with the diff performance, but at least I know the fluid is fresh. I had the usual accumulation of metal on the magnetic plugs. I've got an eaton truetrack waiting to go in when I find a good shop to do it.