MolaKule
Staff member
The differences in formulation is no mystery and to your comment I would say, "Take your pick."
AC Delco Manual Transmission Fluids
- Thread starter Snagglefoot
- Start date
- Status
The differences in formulation is no mystery and to your comment I would say, "Take your pick."
Just to complicate matters even more, here is one more, with a Canadian part number.
Last edited:
The “friction modified” MTF is magic.
Clearly a "cold weather specification" requires a minimum KV100, otherwise a fluid could be super thin to perform well cold, but not be thick enough when hot. I agree with you about that. But edge10 and I have not misunderstood the J306. I repeat, "unlike a grade of 75W-85, a grade of 75W-85W has no indication of maximum kinematic viscosity at 100C." Why not grade fluids with both a minimum and a maximum KV100? The grade 75W-85 accomplishes this, and 12346190 could have been graded in a similar manner, although we can't be sure what the final number actually is.
Nowhere, which is exactly the point. That's why I claimed it was "abusive" notation. Its meaning still isn't clear. Why two "W" gradings? Your justification below may be plausible, but I still find 75W85W quite odd and ad-hoc:
That's the one I inserted between Photo 1 and Photo 2 in Post 3, although I didn't have the Canadian part number.
@Snagglefoot, what prices are you seeing on these fluids?
I’ll check next time I’m in. They’re not cheap, but they are at the parts store and not limited to the dealership.
MolaKule
Staff member
Note that you posted Post #29 entirely as a quote by me. It's your post, not mine.
We're discussing 75W-85W because 10953477, photographed by the OP in the initial post of this thread, is labeled as such. Did you miss that?
I should hope so. I've been linking quotes from that thread.
As I previously stated, I thought it was a typo on the AC Delco bottle, until I found the thread you linked, and others on other forums, that discuss 75W-85W. It seems not to be a misprint, just a strange grade.
I took these shot today. They are in Canadian dollars. Multiply by 0.7 for US dollars.
Comparatively, Dex VI is cheap.
I appreciate you taking the time to take additional photos. This really confirms the "unicorn tears" hypothesis:
49CAD is about 37USD at current exchange rates. That's a lot of money for a quart of fluid. By the way, if you don't mind me asking, assuming this is a chain store, which chain is it? It seems quite well-stocked.
Thanks.
By the way. Lordco stocks Motul. Only store around that does that.
Sounds like a one-stop-shop.
Here are some 75W85W lubes.
MolaKule
Staff member
I went to the local GM dealer and requested a quart of A/C Delco 10953477 and was told that number is no longer valid and has been superseded by A/C Delco #88861800 (10-4033) which is labeled Manual Transmission and Transfer Case Fluid, which is the exact fluid I had analyzed along with the two other fluids.
I can't give the values or properties from the three fluid tests but I can tell you the Manual Transmission and Transfer Case Fluid has the same viscosity as the now obsolete-spec Dexron III-H, but it does not have the same chemical signature as the Dexron III-H.
While some MT fluids may be labeled as 75W-85W I still maintain it is a non-sensical labeling. Now at one time the SAE allowed labeling things like 75W90W140 and somesuch but my latest info is that this labeling has since been abandoned.
So I suspect some old inventory could possibly have this non-sensical labeling but to see some later fluids labeled as such is surprising and somewhat pathetic.
In all of my years of formulating transmission fluids I have never, repeat never, been asked to formulate a 75W85W, nor have I ever seen a spec describing this Grade.
I can't give the values or properties from the three fluid tests but I can tell you the Manual Transmission and Transfer Case Fluid has the same viscosity as the now obsolete-spec Dexron III-H, but it does not have the same chemical signature as the Dexron III-H.
While some MT fluids may be labeled as 75W-85W I still maintain it is a non-sensical labeling. Now at one time the SAE allowed labeling things like 75W90W140 and somesuch but my latest info is that this labeling has since been abandoned.
So I suspect some old inventory could possibly have this non-sensical labeling but to see some later fluids labeled as such is surprising and somewhat pathetic.
In all of my years of formulating transmission fluids I have never, repeat never, been asked to formulate a 75W85W, nor have I ever seen a spec describing this Grade.
Last edited:
The USA part number for Canadian 10953477 is 12346190, listed on Amazon here:
https://www.amazon.com/Genuine-GM-12346190-Synthetic-Transmission/dp/B000QIR1V2
Interesting. Someone on Amazon Q&A also contacted the local GM dealer and was told that 12346190 (Canada 10953477) had been superseded by 19369226. The latter bears the same name (Manual Transmission Fluid), but is 75W-90. See these sites:
https://www.amazon.com/ask/questions/Tx2GXURB0F9DSD/ref=ask_ql_ql_al_hza said:
https://www.gmpartsdirect.com/oem-parts/gm-synthetic-manual-transmission-fluid-gl-4-75w-90-32-oz-19369226 said:
Nevertheless, someone on Amazon received genuine 12346190:
https://www.amazon.com/ask/questions/Tx2GXURB0F9DSD/ref=ask_ql_ql_al_hza said:
That's what I though too, which led to the following interaction:
I believe that foregoing interaction what prompted the ensuing 75W-85W discussion.
- Status
Similar threads
