Rear Diff question

Midblues · 12-26-2019, 06:55 PM

Hello
I have a 2019 2.0 turbo LT with 6 speed manual.I am changing the fluid and I know it has a limited slip rear diff dealer says I dont need the limited slip additive and he does not sell it. ( I dont think he knew what he was talking about) I have had a few limited Slip rears and always added the LS additive. So my question is do I need the additive and does the dealer sell it?
Any body have a part # or pic of it. I am fine using OEM fluids in rear diff.

turbojeep95 · 12-26-2019, 07:45 PM

You do need the additive or else your tires will chirp and the rear diff will groan around turns. I bought the fluid with friction modifier in it for mine but still needed more. I used most of another tube of friction modifier before my rear diff stopped groaning.

wookwook · 12-26-2019, 08:37 PM

I figure my diff will stop groaning and I still have healthy skid marks. Hasn't anyone just rode it out till it finished breaking in? Actually its my first winter, and it seems like it stopped after a couple months.

sadpanda · 01-23-2020, 08:35 AM

Probably DEXRON LS Gear 75W-90 which includes slip addirive.

Or any 'LS' labeled fluid (ie penzoil) of same weight should be fine. I think diff MFG recommended Texaco. I would go with full synthetic regardless.

Start The Machine · 01-23-2020, 10:39 AM

Yes, you need to flush it several times and add the additive.

protovack · 02-12-2020, 11:19 PM

the recommended fluid is
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Dexron "LS" for limited slip, additive is already in it.

Midblues · 02-13-2020, 03:59 PM

Thanks guys will do it with next oil change

wookwook · 02-13-2020, 04:31 PM

Thanks for the info, how many of those bottles would it use?

12-26-2019, 06:55 PM	#1
Midblues Drives: Chevy Camaro 2019 Turbo 4 LT 6sp Join Date: Jun 2019 Location: home Posts: 70	Rear Diff question Hello I have a 2019 2.0 turbo LT with 6 speed manual.I am changing the fluid and I know it has a limited slip rear diff dealer says I dont need the limited slip additive and he does not sell it. ( I dont think he knew what he was talking about) I have had a few limited Slip rears and always added the LS additive. So my question is do I need the additive and does the dealer sell it? Any body have a part # or pic of it. I am fine using OEM fluids in rear diff.

01-23-2020, 10:39 AM	#5
Start The Machine Drives: 2016 M6 2.0T Join Date: Nov 2016 Location: Gig Harbor, WA Posts: 839	Yes, you need to flush it several times and add the additive. __________________ RS Package, HD Cooling Package, Brembo 6 Piston Front Brakes, SRP Racing Pedals, Soler Performance Throttle Controller, Dyno Tuned by Trifecta, Velossa Tech Ram Air, Mishimoto Intake, aFe Air Filter, Mishimoto Charge Pipes, ZZP 67mm Throttle Body, Trifecta T40 Stage 2 Turbo, JacFab Recirculation Valve, PTP Turbo Blanket, ZZP Catted Downpipe, Mishimoto Pro Cat-Back Quad Tip Exhaust, Mishimoto Catch Cans, Mishimoto Coolant Reservoir Tank, GM SEMA Grill, Ikon Motorsports Front Fascia Extension, Ikon Motorsports 1LE Spoiler, American Authority ZL1 Side Skirts, AMPP Quad Tip Rear Valance

02-13-2020, 04:31 PM	#8
wookwook Drives: 18 Camaro LS M6 Join Date: Apr 2019 Location: NH Posts: 698	Thanks for the info, how many of those bottles would it use? __________________ . . . NFG M6 2T Mishimoto Hot side pie \| ZZP Catted DP \| KN Drop in \| Borla - Sport Tour \| Apex Arc 8 - square \| Wookster Tuning+ \| Flex Fuel Last PB 4.8, 13.2@106

12-26-2019, 07:45 PM	#2
turbojeep95 Drives: 17 Camaro lt, 22 Camaro LT1 Join Date: Nov 2016 Location: Beaver, PA Posts: 411 View My Garage	You do need the additive or else your tires will chirp and the rear diff will groan around turns. I bought the fluid with friction modifier in it for mine but still needed more. I used most of another tube of friction modifier before my rear diff stopped groaning.

12-26-2019, 08:37 PM	#3
wookwook Drives: 18 Camaro LS M6 Join Date: Apr 2019 Location: NH Posts: 698	I figure my diff will stop groaning and I still have healthy skid marks. Hasn't anyone just rode it out till it finished breaking in? Actually its my first winter, and it seems like it stopped after a couple months.

01-23-2020, 08:35 AM	#4
sadpanda Drives: 2014 ATS 2.0T 6MT Join Date: Mar 2018 Location: ohio Posts: 66	Probably DEXRON LS Gear 75W-90 which includes slip addirive. Or any 'LS' labeled fluid (ie penzoil) of same weight should be fine. I think diff MFG recommended Texaco. I would go with full synthetic regardless.

02-12-2020, 11:19 PM	#6
protovack Drives: 2019 2LT 2.0T M6 Riverside Blue Join Date: Jan 2018 Location: WA Posts: 847	the recommended fluid is https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 Dexron "LS" for limited slip, additive is already in it.

02-13-2020, 03:59 PM	#7
Midblues Drives: Chevy Camaro 2019 Turbo 4 LT 6sp Join Date: Jun 2019 Location: home Posts: 70	Thanks guys will do it with next oil change

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