1500 Mile Oil change and rear diff fluid change

JayhawkSS1LE · 10-04-2017, 07:31 PM

So at 1500 miles should you change the oil and rear diff fluid? I don’t recall seeing that in the manual but believe I read that on this forum (?)

ChevyRules · 10-04-2017, 07:38 PM

Oil is always preference and technically the rear diff fluid change is only recommended if you plan to track it. But a lot seem to be doing it to prevent the rear diff groaning noise in the winter( or at least a method of prevention). But this only applies to the regular SS's. Don't think we have heard any cases of the eLSD having the same groaning noise.

TrackClub · 10-05-2017, 01:26 AM

By all means change both. The diff fluid comes out black and deposits tons of shavings on the magnetic plugs. If you track your car it is recommended to change it (in addition) after your first track day and then every 20 hrs (say 10 track days or so). Tranny every 24 hrs.

nancygrl · 10-05-2017, 09:29 AM

Doing the diff at the same time is good preventive maintenance. I had minimal residue on the magnetic drain plug when I did mine, but it did still have some crud on the magnet.
Glad I changed my diff fluid.

ag1leSS · 10-05-2017, 10:26 AM

Quote:

Originally Posted by TrackClub

By all means change both. The diff fluid comes out black and deposits tons of shavings on the magnetic plugs. If you track your car it is recommended to change it (in addition) after your first track day and then every 20 hrs (say 10 track days or so). Tranny every 24 hrs.

Thought it was recommended to change diff before first track day and then 20 hrs of track time.

I never saw a recommendation for the trans and 24hrs...

Does the trans and diff fluid mix? I was under the car and there are lines that come out of the diff and clearly run into the trans.

MatthewAMEL · 10-05-2017, 10:50 AM

Yes, the diff fluid interval is change once before 1st track day and then every 20 hours of track time.

There is no like service interval for the transmission.

camaromike77 · 10-05-2017, 12:53 PM

I did both at 1500 miles......

TrackClub · 10-05-2017, 06:29 PM

Guys, read the manuals. It is all there. Including the tranny interval (in addition to the diff interval.
Plus changing the diff fluid AFTER a first track day. Albeit many do one before after break in and then again after 1st track day.

EDIT: page 205

SS 1LE · 10-06-2017, 05:59 PM

Do both at 1500...

Eldi Z · 10-08-2017, 09:55 AM

Since there is a e-Diff mechanism, I understand there are 2 separate chambers: one for the gear and the other for the e-Diff (electronic/control) part?
The chamber for the gears calls for a weight of 75W90 gear fluid? Any favorite brand?
What about the other fluid chamber (if there is)?

TrackClub · 10-08-2017, 12:01 PM

GM brand per the manual for the gear diff ("pumpkin"). About $60 at a dealer. The e-chamber not necessary albeit have to check the manual re frequency.

TrackClub · 10-09-2017, 01:23 AM

Oh btw that was a price for fluid plus labour NOT just the fluid.

nate.the.great · 10-09-2017, 01:39 AM

do both, the diff is filthy. you can ignore the tranny fluid since it was super clean.

Eldi Z · 10-09-2017, 09:06 AM

Quote:

Originally Posted by TrackClub

GM brand per the manual for the gear diff ("pumpkin"). About $60 at a dealer. The e-chamber not necessary albeit have to check the manual re frequency.

Yep, this is what I thought.
I usually use BG Professional products:

https://www.bgprod.com/catalog/drive.../#bg-product-1

10-04-2017, 07:31 PM	#1
JayhawkSS1LE Drives: 2017 SS 1LE Join Date: Jun 2017 Location: Woodstock, GA Posts: 200	1500 Mile Oil change and rear diff fluid change So at 1500 miles should you change the oil and rear diff fluid? I don’t recall seeing that in the manual but believe I read that on this forum (?) __________________ 17 SS 1LE.

10-05-2017, 10:50 AM	#6
MatthewAMEL Drives: 2023 CT5 Blackwing, 2025 C8 Z07 Join Date: Sep 2016 Location: Denver Posts: 1,624	Yes, the diff fluid interval is change once before 1st track day and then every 20 hours of track time. There is no like service interval for the transmission. __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6 2025 Hysteria Purple C8 Z07

10-05-2017, 12:53 PM	#7
camaromike77 Drives: S O L D Join Date: Aug 2016 Location: Ontario Posts: 2,106	I did both at 1500 miles...... __________________ Club F1FTY 2017 2SS 50th Anniversary Convertible Borla S-Type exhaust NPP\| GM CAI \| Color matched GM side skirts \| Color matched 3rd brake light \| Big Worm Graphics smoked out tail lights & rear reflectors \| Oracle ghosted side markers \| LED License plate bulbs \| Door striker covers \| Jam handle \| Engine emblems from RiverCity Creations \| 50th Center Console \| Black bow ties \| Hawk Performance ceramic brake pads \| ZL1 Start button \| CQuartz ceramic paint finish \| Novistretch bra \| S O L D

10-05-2017, 06:29 PM	#8
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	Guys, read the manuals. It is all there. Including the tranny interval (in addition to the diff interval. Plus changing the diff fluid AFTER a first track day. Albeit many do one before after break in and then again after 1st track day. EDIT: page 205 Last edited by TrackClub; 10-05-2017 at 06:42 PM.

10-06-2017, 05:59 PM	#9
SS 1LE マスタング = 遅い Drives: 2017 Chevrolet Camaro SS 1LE Join Date: Aug 2015 Location: Florida Posts: 7,061	Do both at 1500... __________________

10-04-2017, 07:38 PM	#2
ChevyRules Drives: 2021 Tesla Model 3 LR Join Date: May 2016 Location: USA Posts: 1,019	Oil is always preference and technically the rear diff fluid change is only recommended if you plan to track it. But a lot seem to be doing it to prevent the rear diff groaning noise in the winter( or at least a method of prevention). But this only applies to the regular SS's. Don't think we have heard any cases of the eLSD having the same groaning noise.

10-05-2017, 01:26 AM	#3
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	By all means change both. The diff fluid comes out black and deposits tons of shavings on the magnetic plugs. If you track your car it is recommended to change it (in addition) after your first track day and then every 20 hrs (say 10 track days or so). Tranny every 24 hrs.

10-05-2017, 09:29 AM	#4
nancygrl 雪の玉 Drives: '22 Z71 RST Silverado Join Date: Feb 2011 Location: South Posts: 3,415	Doing the diff at the same time is good preventive maintenance. I had minimal residue on the magnetic drain plug when I did mine, but it did still have some crud on the magnet. Glad I changed my diff fluid.

10-08-2017, 09:55 AM	#10
Eldi Z Drives: 17' 1SS 1LE GBA-Black Join Date: Mar 2017 Location: TLV Posts: 875	Since there is a e-Diff mechanism, I understand there are 2 separate chambers: one for the gear and the other for the e-Diff (electronic/control) part? The chamber for the gears calls for a weight of 75W90 gear fluid? Any favorite brand? What about the other fluid chamber (if there is)?

10-08-2017, 12:01 PM	#11
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	GM brand per the manual for the gear diff ("pumpkin"). About $60 at a dealer. The e-chamber not necessary albeit have to check the manual re frequency.

10-09-2017, 01:23 AM	#12
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	Oh btw that was a price for fluid plus labour NOT just the fluid.

10-09-2017, 01:39 AM	#13
nate.the.great Drives: 2017 Camaro 1SS 1LE Join Date: Jan 2017 Location: Seattle Posts: 135	do both, the diff is filthy. you can ignore the tranny fluid since it was super clean.

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