Latest 75W-90 gear lube

Iconic · 09-03-2023, 01:42 PM

I want to do the 500/1500 mile diff lube changes on my 1SS 1LE

I'm seeing two common Dexron numbers

#1 88862624 75W- 90
#2 88862624 75W-90 GL5

Both have been posted here, some treads are years old. I thought I'd ask for the latest instead of piling onto old threads.

CalgaryZL1 · 09-03-2023, 01:49 PM

#1 with the friction modifier already added

Iconic · 09-03-2023, 10:54 PM

Then which Camaro trims take #2 - 88862624 GL5?

My owners manual states "see your dealer" for gear lube part number. Being a holiday weekend and they are not open for 2 more days, I've wasted about 3 hours researching this to get nowhere.

CalgaryZL1 · 09-04-2023, 06:10 AM

Quote:

Originally Posted by Iconic

Then which Camaro trims take #2 - 88862624 GL5?

My owners manual states "see your dealer" for gear lube part number. Being a holiday weekend and they are not open for 2 more days, I've wasted about 3 hours researching this to get nowhere.

pretty sure GL5 is synthetic formula. can’t see why you couldn’t use either one, unless there’s some sort of compatibility issue using the synthetic with non-synthetic when doing a dump and fill

6spdhyperblue · 09-04-2023, 07:02 AM

https://bobistheoilguy.com/forums/th...erence.328135/

Dynamical · 09-04-2023, 07:29 AM

Quote:

Originally Posted by Iconic

Then which Camaro trims take #2 - 88862624 GL5?

My owners manual states "see your dealer" for gear lube part number. Being a holiday weekend and they are not open for 2 more days, I've wasted about 3 hours researching this to get nowhere.

Only 3 hrs? I had my car for 2 months now and I'm still looking for better answers

The thing that pisses me off is GM cant even pull an answer out of their ass to print the correct fluid in our newer manuals. "See dealer".....yeah OK, so some idiot can give the wrong part number out of the half dozen that's out there

Here on the forum you will be told to use NOTHING but this https://www.amazon.com/gp/product/B0...N9MTFHYL&psc=1

But I'm thinking of grabbing the Valvoline 75w90 bags to avoid the pumping/mess. I'll use the AC Delco LS additive with it. That's if I choose to go that way.

EDIT: After more research, I'm sticking with the OE fluid in the link I posted

Iconic · 09-04-2023, 01:07 PM

According to the bobtheoilguy link, this confusion has been going on for YEARS

302crossram · 09-04-2023, 01:12 PM

Delco Dino with LS additive

Daily1LE · 09-05-2023, 12:03 AM

Attached image is everything I used when I changed diff and trans fluids. Have been through 2 changes now and 5 years / 20k miles thus far no issues.

Iconic · 09-05-2023, 09:11 AM

^^^ Thanks Matt, my dealer confirmed the 88862624 75W-90 GL5.

Boost Creep · 09-05-2023, 10:23 AM

Same part number, they just added the GL-5 identification.

09-03-2023, 10:54 PM	#3
Iconic Miller Time Wisconsin Drives: '24 VOM 1SS 1LE M6. 1 of 4 Join Date: Jul 2018 Location: Formerly USA, now planet of the apes bizaroworld Posts: 255	Then which Camaro trims take #2 - 88862624 GL5? My owners manual states "see your dealer" for gear lube part number. Being a holiday weekend and they are not open for 2 more days, I've wasted about 3 hours researching this to get nowhere. __________________ 2024 1SS 1LE M6 rockcrusher in Vivid Orange Metallica. 1 of 4

09-04-2023, 07:02 AM	#5
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,678	https://bobistheoilguy.com/forums/th...erence.328135/ __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold)

09-04-2023, 01:07 PM	#7
Iconic Miller Time Wisconsin Drives: '24 VOM 1SS 1LE M6. 1 of 4 Join Date: Jul 2018 Location: Formerly USA, now planet of the apes bizaroworld Posts: 255	According to the bobtheoilguy link, this confusion has been going on for YEARS __________________ 2024 1SS 1LE M6 rockcrusher in Vivid Orange Metallica. 1 of 4

09-05-2023, 12:03 AM	#9
Daily1LE Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2019 Location: IL Posts: 117	Attached image is everything I used when I changed diff and trans fluids. Have been through 2 changes now and 5 years / 20k miles thus far no issues. Attached Images __________________ 2018 1SS 1LE - DSX E85 Kit \| Full ARH Exhaust \| RotoFab CAI \| Tuned - 462HP/469TQ

09-05-2023, 09:11 AM	#10
Iconic Miller Time Wisconsin Drives: '24 VOM 1SS 1LE M6. 1 of 4 Join Date: Jul 2018 Location: Formerly USA, now planet of the apes bizaroworld Posts: 255	^^^ Thanks Matt, my dealer confirmed the 88862624 75W-90 GL5. __________________ 2024 1SS 1LE M6 rockcrusher in Vivid Orange Metallica. 1 of 4

09-03-2023, 01:42 PM	#1
Iconic Miller Time Wisconsin Drives: '24 VOM 1SS 1LE M6. 1 of 4 Join Date: Jul 2018 Location: Formerly USA, now planet of the apes bizaroworld Posts: 255	Latest 75W-90 gear lube I want to do the 500/1500 mile diff lube changes on my 1SS 1LE I'm seeing two common Dexron numbers #1 88862624 75W- 90 #2 88862624 75W-90 GL5 Both have been posted here, some treads are years old. I thought I'd ask for the latest instead of piling onto old threads. __________________ 2024 1SS 1LE M6 rockcrusher in Vivid Orange Metallica. 1 of 4

09-03-2023, 01:49 PM	#2
CalgaryZL1 Drives: 2020 Chevy Camaro ZL1 Join Date: Apr 2023 Location: Calgary Canada Posts: 1,490	#1 with the friction modifier already added

09-04-2023, 01:12 PM	#8
302crossram Drives: 2023 Sharkskin 2SS Join Date: Oct 2022 Location: NWFL Posts: 758	Delco Dino with LS additive

09-05-2023, 10:23 AM	#11
Boost Creep Drives: '18 1SS 1LE Join Date: Sep 2017 Location: Pennsyltucky Posts: 2,571	Same part number, they just added the GL-5 identification. __________________ '18 1SS *1LE* Black, PDR

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