Rear differential fluid change - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mr.R · 05-30-2012, 10:53 PM

Should it be replaced after the 1,500 miles break in period? The book doesn't say anything; in fact there's a check box at 45,000miles for severe use or 97,500miles for regular use. Also, you're supposed to change it every time you track it.

Any advice? I'm planning to use Mobil1 LS 75W-90

Rice Killer · 05-30-2012, 11:14 PM

There will be some metal shavings in there that could be benificial to remove, but probably not necessary. I know people who own other sports cars and haven't changed it with no issues. It would take a pretty big shaving to mess up your rear end gears.

I will be changing all powertrain fluids at probably 500 miles, and again at 1500-2000, just for peace of mind. After that, I will follow GM's maintenance schedule. But I'm silly like that.

LimaCharlie · 05-30-2012, 11:21 PM

It doesn't hurt to change it early. I changed the differential gear oil at about 9,000 miles on my SS and it looked horrible. I used Amsoil Severe Gear 75-90 with 2.5oz of GM posi additive.

Indy Bumble Bee · 05-30-2012, 11:46 PM

I changed it at 12000 and there was a lot of shavings. It was nasty smelling and dirty. I would change it. It super easy

RoketRdr · 05-30-2012, 11:50 PM

Quote:

Originally Posted by Mr.R

Should it be replaced after the 1,500 miles break in period? The book doesn't say anything; in fact there's a check box at 45,000miles for severe use or 97,500miles for regular use. Also, you're supposed to change it every time you track it.

Any advice? I'm planning to use Mobil1 LS 75W-90

Like what's already been stated...its you're peace of mind so if you don't mind spending the time and money then by all means do it. It's your baby that you wrote a hard earned check for so do what makes your feel comfortable and assured that it will remain a well oiled machine. In the owners manual GM recommends changing the dif fluid after every 24 hours of track time. So if you track/race the car change it at 45K or 24 hours of track use whichever comes first.

1st Gen Forever · 05-30-2012, 11:53 PM

I changed mine at my 1500 mile service. I think I read somewhere that it's recommended if you intend to track the car.

CAM....ZL1 · 05-31-2012, 05:22 PM

I had my diff. fluid, and oil changed today. I asked the dealer
about mobile 1, and he said the Tech that went to school for training
on the Z said that GM did not recommend doing that. He said
that I should put in the Dexos 1 Syn. blend That GM recommends
I have 1545 mi. on it at the time, I also put a K & N high flo filter
in the stock box, Sure seems like it pulls much harder with the increased air flo.

pglorioso · 05-31-2012, 05:28 PM

Quote:

Originally Posted by CAM....ZL1

I had my diff. fluid, and oil changed today. I asked the dealer
about mobile 1, and he said the Tech that went to school for training
on the Z said that GM did not recommend doing that. He said
that I should put in the Dexos 1 Syn. blend That GM recommends
I have 1545 mi. on it at the time, I also put a K & N high flo filter
in the stock box, Sure seems like it pulls much harder with the increased air flo.

Good information, thanks!! Can you share the K&N filter part number please!!

Silverguardrail · 05-31-2012, 05:35 PM

The manual does say:
Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended.

But not for the:
Rear Differential Fluid 75W-90 Limited Slip (GM Part No. 88862624, in
Canada 88862625).

Same as DEXRON® LS gear oil ?

RoketRdr · 05-31-2012, 05:42 PM

Here's a partial list of Dexos1 certified oils. I should add that Amsoil has 3 formulations that will work in the ZL1 that meet the Dexos1 certification and actually exceed it on the sulfated ash specs.

http://www.gmdexos.com/licensedbrand...sedbrands.html

JMAN311 · 05-31-2012, 05:43 PM

^^^^ RoketRdr beat me to the link ^^^^

You can use Mobil1 or any of these:

http://www.gmdexos.com/licensedbrand...sedbrands.html

of course GM is going to push their own ACDelco product.....but any of these meet the requirements...

Happy_Dan · 05-31-2012, 06:45 PM

I just changed my engine oil and rear diff fluid at 1500 just for peace of mind.
I think it is recommended to change rear diff every hours of track time.

CAM....ZL1 · 05-31-2012, 08:46 PM

Quote:

Originally Posted by pglorioso

Good information, thanks!! Can you share the K&N filter part number please!!

Its the same one that fits the ss box? 33-2434

pglorioso · 05-31-2012, 10:37 PM

Quote:

Originally Posted by CAM....ZL1

Its the same one that fits the ss box? 33-2434

Thanks

05-30-2012, 10:53 PM	#1
Mr.R Drives: ZL1, Genesis, Grand Cherokee Join Date: Feb 2012 Location: Cleveland Posts: 232	Rear differential fluid change Should it be replaced after the 1,500 miles break in period? The book doesn't say anything; in fact there's a check box at 45,000miles for severe use or 97,500miles for regular use. Also, you're supposed to change it every time you track it. Any advice? I'm planning to use Mobil1 LS 75W-90

05-30-2012, 11:14 PM	#2
Rice Killer Cooter Drives: my wife crazy Join Date: Oct 2011 Location: SW WI Posts: 569	There will be some metal shavings in there that could be benificial to remove, but probably not necessary. I know people who own other sports cars and haven't changed it with no issues. It would take a pretty big shaving to mess up your rear end gears. I will be changing all powertrain fluids at probably 500 miles, and again at 1500-2000, just for peace of mind. After that, I will follow GM's maintenance schedule. But I'm silly like that. __________________ #1451 - 2012 ZL1 - White, Black Wheels, Manual, Suede Package, and Exposed Hood Insert. Delivered on 6/20/12. Thanks to Jason from Symdon Motors in Evansville, WI.

05-30-2012, 11:21 PM	#3
LimaCharlie Drives: 2011 Camaro SS/RS - 2004 Silverado Join Date: Mar 2010 Location: Las Vegas, NV Posts: 2,989	It doesn't hurt to change it early. I changed the differential gear oil at about 9,000 miles on my SS and it looked horrible. I used Amsoil Severe Gear 75-90 with 2.5oz of GM posi additive. __________________ 2011 Summit White Camaro 1SS/RS -6.2 LS3, TR6060, 3.45, G80 2004 Black Silverado 1500 2WD Regular Cab, Short Bed -5.3 LM7, 4L60E, 3.42, G80 2014 White Caprice PPV -6.0 L77, 6L80E, 2.92, G80

05-31-2012, 05:35 PM	#9
Silverguardrail Drives: 2012 ZL1 #1448 Join Date: May 2009 Location: WNY Posts: 892	The manual does say: Use only engine oil licensed to the dexos1 specfication, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. But not for the: Rear Differential Fluid 75W-90 Limited Slip (GM Part No. 88862624, in Canada 88862625). Same as DEXRON® LS gear oil ? __________________ 2012 ZL1 SIM, MN6, B92, RTQ ZL1 - the true definition of joy ride Last edited by Silverguardrail; 05-31-2012 at 05:46 PM.

05-31-2012, 05:43 PM	#11
JMAN311 Drives: 2013 F-150 Limited Join Date: May 2008 Location: Parker, CO Posts: 2,191	^^^^ RoketRdr beat me to the link ^^^^ You can use Mobil1 or any of these: http://www.gmdexos.com/licensedbrand...sedbrands.html of course GM is going to push their own ACDelco product.....but any of these meet the requirements... __________________ There just might be a 2016 Camaro or Corvette in my future... _____________________________________________ Previous Chevy's 2013 Camaro ZL1 A6\|SIM 2010 Camaro 2SS/RS\|M6\|CGM Exterior\|Gray Int 2000 Camaro SS\|M6\|SLP headers\|SLP center mounted quad exhaust\|Magnaflow muffler\|Hypertech programmed 2001 Corvette\|M6\|LG Motorsports Headers\|Corsa Touring Cat-back\|Magnaflow X Pipe\|Hurst short-throw\|Dyno tuned

05-30-2012, 11:46 PM	#4
Indy Bumble Bee Drives: Beest Join Date: Aug 2011 Location: Indy Posts: 660	I changed it at 12000 and there was a lot of shavings. It was nasty smelling and dirty. I would change it. It super easy

05-30-2012, 11:53 PM	#6
1st Gen Forever ZL1 #140 Drives: Camaros: 68 SS, 10 2SS/RS, 12 ZL1 Join Date: Mar 2008 Location: Arizona Posts: 594	I changed mine at my 1500 mile service. I think I read somewhere that it's recommended if you intend to track the car.

05-31-2012, 05:22 PM	#7
CAM....ZL1 Drives: 2012 ZL1 Join Date: Feb 2012 Location: BENTON, IL. Posts: 1,068 View My Garage	I had my diff. fluid, and oil changed today. I asked the dealer about mobile 1, and he said the Tech that went to school for training on the Z said that GM did not recommend doing that. He said that I should put in the Dexos 1 Syn. blend That GM recommends I have 1545 mi. on it at the time, I also put a K & N high flo filter in the stock box, Sure seems like it pulls much harder with the increased air flo.

05-31-2012, 05:42 PM	#10
RoketRdr Drives: 2010 Duramax; 2012 CTS-V Coupe Join Date: Apr 2012 Location: Houston, Tx Posts: 387	Here's a partial list of Dexos1 certified oils. I should add that Amsoil has 3 formulations that will work in the ZL1 that meet the Dexos1 certification and actually exceed it on the sulfated ash specs. http://www.gmdexos.com/licensedbrand...sedbrands.html

05-31-2012, 06:45 PM	#12
Happy_Dan Happy_Dan Drives: 2012 IOM Camaro ZL1 #569 Join Date: Dec 2011 Location: New Boston, NH Posts: 2,239	I just changed my engine oil and rear diff fluid at 1500 just for peace of mind. I think it is recommended to change rear diff every hours of track time.