[chachasama]

I have 23' 2SS, dealer said Synthetic 88900401 + Additive 88900330, but 22' service manual confirms 88862624 is OK.
So, I ordered 88862624(10-4034) from Amazon, and then 88865623 two bottles arrived! After pilling off the makeup sticker, finally, it was 88862624.
Anyone know what's going on? and bottle shape changed? and what is the 88865623?

[2SS Capt]

Originally Posted by chachasama

I have 23' 2SS, dealer said Synthetic 88900401 + Additive 88900330, but 22' service manual confirms 88862624 is OK.
So, I ordered 88862624(10-4034) from Amazon, and then 88865623 two bottles arrived! After pilling off the makeup sticker, finally, it was 88862624.
Anyone know what's going on? and bottle shape changed? and what is the 88865623?

The newer bottles are "wide mouth" bottles, I had to buy a new fluid pump due to the change... If you are very careful, 4 bottles will do exactly 3 fluid changes (I did just that at 505, 1500 and 5875 mile differential fluid changes (I was very glad to do the 505 & 1500 as both had a fairly significant amount of "sludge" on the magnetic plugs (especially the 505 mile change)) the 5875 was much more benign and I recently just did a 9468 mile diff fluid change that likely didn't need to be done, but "Fluids are cheap, components are not" so it got a change!)

Change early & change often, if you are doing it yourself, it is pennies, just do it... And it is super easy...

[chachasama]

Originally Posted by 2SS Capt

The newer bottles are "wide mouth" bottles, I had to buy a new fluid pump due to the change... If you are very careful, 4 bottles will do exactly 3 fluid changes (I did just that at 505, 1500 and 5875 mile differential fluid changes (I was very glad to do the 505 & 1500 as both had a fairly significant amount of "sludge" on the magnetic plus (especially the 505 mile change)) the 5875 was much more benign and I recently just did a 9468 mile diff fluid change that likely didn't need to be done, but "Fluids are cheap, components are not" so it got a change!)

Change early & change often, if you are doing it yourself, it is pennies, just do it... And it is super easy...

Thank you very much for your confirmation. I totally agree with your opinion, "Fluids are cheap, components are not."

I found some sources, 10-4034 came from Petro-Canada, and they changed the bottle shape recently.
https://www.fuelsandlubes.com/petro-...or-1l-bottles/

I attached tech data of DEXRON LS GEAR OIL 75W-90.
https://petrocanadalubricants.com/en...dexron-product

Does anyone know which one is better? Dexron LS compare with Redline, Valvoline, Motel, etc.

[2SS Capt]

Originally Posted by chachasama

Thank you very much for your confirmation.

I found some sources, 10-4034 came from Petro-Canada, and they changed the bottle shape recently.
https://www.fuelsandlubes.com/petro-...or-1l-bottles/

I attached tech data of DEXRON LS GEAR OIL 75W-90.
https://petrocanadalubricants.com/en...dexron-product

Does anyone know which one is better? Dexron LS compare with Redline, Valvoline, Motel, etc.

It looks like you are in LA (Los Angeles) not sure why you are looking at Canadian fluids???

They are likely all the same, but as a US consumer, I would stick with the ACDelco Dexron fluid...

[chachasama]

Originally Posted by 2SS Capt

It looks like you are in LA (Los Angeles) not sure why you are looking at Canadian fluids???

They are likely all the same, but as a US consumer, I would stick with the ACDelco Dexron fluid...

I'm not interested in Canadian oil.
The Dexron LS Gear Oil 75W-90 is supplied by the Petro-Canada lubricant company.
I just want to know how well Dexron performed.

[2SS Capt]

Originally Posted by chachasama

I'm not interested in Canadian oil.
The Dexron LS Gear Oil 75W-90 is supplied by the Petro-Canada lubricant company.
I just want to know how well Dexron performed.

I would go with OEM GM fluid...