12-14-2021, 12:11 PM | #15 | ||
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Absolutely, I have a great garage setup, portable lift, tools, and lighting. I even have an A/C installed for those hot Texas summers, but I always got my fluid changed at a shop, it should have been easy to do and they have the resources and means to dispose of the used fluids. BUT, I learned my lesson and now I’m doing all my fluids myself, at least I’ll know it’s done correctly. |
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12-14-2021, 12:43 PM | #16 | |||
Drives: 19 Chevrolet Camaro 2SS 1LE Shock Join Date: Apr 2020
Location: BC, Canada
Posts: 1,947
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For some cars, they tell you to run 10W-30 in the manual trans/diff in a pinch if the appropriate fluid is unavailable. Of course, you should change it out ASAP because as I mentioned, you are missing the appropriate additive packages. Quote:
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2019 Chevrolet Camaro 2SS 1LE M6 Shock GM Performance Intake and that's it, because driver mods before car mods Past: 2009 Mazda RX-8 GT M6 Velocity Red Mica (Sold) 2015 Chevrolet Corvette Z51 2LT M7 Velocity Yellow Tintcoat (Flood totaled) |
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12-18-2021, 11:53 AM | #17 |
Hey guys, I wanted to update all of you. The shop called me back and basically told me what I thought all along, they put the wrong gear oil in the system. They blamed it on their software recommending the wrong oil, I find that hard to believe. This morning I put the car on the lift and drained the diff again, what came out was consistent in color and smell to Dexron 88862624. I felt the need to replace it with the right oil so that I knew it was done correctly.
After I was completed, I took the car out and test drove it for about 30 minutes. There was no moan when turning, the rear end was quiet when doing figure eights. I took it out on the main road, got it up to about 70 mph, then took it back, did some more figure eights and I have no complaint now. If you remember, I brought it back from the shop and I could still hear moans and clunks in the diff. I don't know if it's my own satisfaction or knowledge that the correct oil is in the diff but it runs as an 11k mile car should, it's quiet. I'm still not finished with the shop, I'm trying to hold them to a 30k warranty on my diff, they said they would need to talk to corporate but I'm not having high hopes that they will get back to me anytime soon. I'll keep pressing them at least to have it noted. I want to thank everyone for their suggestions on the forum, I always lurk here but it's nice to know that I have a complete knowledge base at my fingers when I need one. Thank you. |
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12-18-2021, 01:16 PM | #18 | |
Drives: Wild Cherry LT1 Join Date: Dec 2016
Location: Massachusetts
Posts: 1,925
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Well, I’m glad it seems to have worked out for you. If they drag their feet, I’d ask them- Do I need to get a lawyer involved?…the car has 11K miles on it. The threat of a lawyer, may make them more receptive to giving you what you want. I just don’t think it’s much to ask… including your $ back, as well as paying YOU for you time effort and materials to change again. But that’s me…everyone has their own tolerance level for confrontation. Good luck. |
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12-18-2021, 09:05 PM | #19 |
Drives: 2020 1SS 1le Join Date: Apr 2019
Location: SO CAL
Posts: 440
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i once had a shop put in ATF in my manual cobalt SS trans which required gear oil basically. Dude said "red came out red went in". Certified and all that junk.
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12-18-2021, 09:47 PM | #20 | |
Drives: 19 Chevrolet Camaro 2SS 1LE Shock Join Date: Apr 2020
Location: BC, Canada
Posts: 1,947
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Or again, they punched in the wrong car or wrong part.
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Current:
2019 Chevrolet Camaro 2SS 1LE M6 Shock GM Performance Intake and that's it, because driver mods before car mods Past: 2009 Mazda RX-8 GT M6 Velocity Red Mica (Sold) 2015 Chevrolet Corvette Z51 2LT M7 Velocity Yellow Tintcoat (Flood totaled) |
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12-18-2021, 11:04 PM | #21 | |
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Anyway, everything seems to be running well now, no cold moan when turning on the last test drive. |
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12-20-2021, 06:55 AM | #22 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 1,986
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Some manual tranny's take ATF, that's not uncommon contrary to the logic of it.
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12-20-2021, 07:44 AM | #23 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,601
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OP, it looks like your car got away with minimal or no damage, yay. Hope you'll be able to wring the extra warranty out of the dealership.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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01-04-2022, 02:24 PM | #24 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,177
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If the diff is not making noise anymore, I suspect it is OK.
The ATF and gear oil are probably interchangeable over the short term. The oil portion of these fluids is designed to lubricate the rotating parts (i.e. gears) and dissipate heat. The crucial difference here is the friction modifier package. This is what allows "locked" plates to slip. The needs in a limited slip diff vs. an automatic tranny are different. An LSD has springs continually applying pressure to the clutch surfaces. In a straight line they are always locked. On turning, we want the plates to slip instead of the tires slipping on the road. The friction modifier (well, a small bit of the total amount) sits between the plates and allows them to temporarily slide. Static friction turns to sliding friction. The friction modifier also helps dissipate the resulting heat to the rest of the gear oil. In an ATF during shifts, clutch packs transition from 0% force to 100% force. It is during the transition that we want a friction modifier to smooth engagement. In this scenario the modifier should allow slippage for a bit and then not slip at all. We don't want any slip once it's 100% engaged. The friction modifiers in ATF are basically "more grabby," which is why the OP's car made horrendous noise while turning. From what I can find, the Dexron 75W-90 LS Gear Oil is a blended synthetic gear oil with this friction modifier added: https://standards.globalspec.com/std/9966549/9985412 I would need to know exactly which ATF was used on the OP's diff to compare the additives directly. |
01-05-2022, 08:17 AM | #25 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
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For what it’s worth, the recommended lubricant for the diff is the same shade of red as ATF. Also, despite the 75W 90 viscosity rating, it behaves differently than conventional trans/diff dope. It pours/drains about the same as motor oil. Don’t pull your drain plug and expect this stuff to drain out like molasses.
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01-05-2022, 01:04 PM | #26 | |
Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019
Location: Erlanger, Kentucky 41018
Posts: 815
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I changed the diff fluid in my 2017 Camaro and my 2011 Corvette about a month ago. They use the exact same part number GM diff fluid and it definitely is not red. |
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01-05-2022, 02:00 PM | #27 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
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Well, damn! I suppose I must be thinking about the m6 fluid, which is red, as it should be since it actually is atf. My wife accuses me of getting senile, and she must be right. I track my car often and have changed the diff fluid a minimum of 5 - 6 times. My faulty memory apparently "remembered" the yellow/brown fluid as being red lol! What I am positive about though is that it isn't nearly as thick as you would expect.
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2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
03-19-2022, 10:45 AM | #28 |
Drives: 2021 Camaro 1SS 1LE 10AT Join Date: Jul 2021
Location: Universe
Posts: 26
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I'd recommend a used oil analysis from Blackstone on your rear diff fluid to see if anything is wearing faster than it should for your mileage.
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