Toyota's New Low Viscosity Transaxle Fluid
- Thread starter DirectRejection
- Start date
I believe this product is designed for "linear style" CVT's and/or eCVT's.
It appears on the new Corolla Cross Hybrid, transmission and rear axles.
Per the press release, Group III base stock, polymer, phosphorus, and a different form of Calcium.
eCVT too? makes sense, that's got an electric motor in it making heat too. I was actually a bit surprised that it was still WS in their eCVT's to be honest, not shocked, just surprised that they hadn't resorted to some magic (and costly) elixir instead.
My 2019 Lexus UX 250h F-Sport AWD used WS @ eCVT & rear axle.
My 2022 Corolla Cross FWD takes WS @ eCVT.
Again, it is the new stuff everywhere in CC Hybrid, per Car Care Nut.
I will be switching to HPL "Teal"
and that is my final answer.
and that is my final answer.
Well, let’s hope it is not as ludicrously priced as the 75W transfer case fluid for Tundras and Tacomas. $80/quart is the price of many gun oils, LOL…
The Toyota TE is only available in gallons at ++ $100 per gallon and slightly more than one gallon needed for a change out at 60k miles.
I can get a six pack of quarts of HPL Teal for less money and leave it in there for 120k miles.
MolaKule
Staff member
"The transaxle fluid demonstrated reliability while reducing the viscosity to [12.2 cSt]. Fuel efficiency improved by 1% and motor cooling performance improved by 4% compared to automatic transmission fluid (ATF)."
If the Toyota TE fluid is used for motor cooling I recommend speaking with Dave Ward, et. al., about the electrical insulating properties of Teal. Teal is 4.5 cSt@100C. A 12.2 cSt@100C fluid is NOT a ULV, if that's what the article is referring to.
Something doesn't add up.
Last edited:
Thanks Mola. I will be sure to touch base with David Ward before purchase.
My guess is that Toyota or the author involved in their press release was not being precise.
Dealership service advisors and the owners manual both mention that using the wrong viscosity can lead to a noisey unit.
My guess is that Toyota or the author involved in their press release was not being precise.
Dealership service advisors and the owners manual both mention that using the wrong viscosity can lead to a noisey unit.
MolaKule
Staff member
"The transaxle fluid demonstrated reliability while reducing the viscosity to 12.2 [mm2/sec]." Now if it said "reducing the viscosity BY 12.2cSt" then that would be a very large reduction but that is not what was said.
Perhaps you could get a PDS of this fluid with the oil properties listed from the dealer.
ATF's range from 7.1cSt(Dex/Merc or Dexron III) to 6.0cSt(LV) down to 4.5cSt(ULV).
I struck out at the dealership and Toyota North America said the fluid does not need to be changed, therefore there is no publicly available PDS of Genuine Toyota e-Transaxle Fluid TE. SMH.
So I have looked at Eneos equivalent fluid. It is 3.3 cSt at 100°C. HPL Teal is ~ 4.5cSt at 100°C, slightly thicker.
I shot Idemitsu NA an email today. These Japanese companies tend to market fluids VERY close to OEM Asian fluids (if they aren't the makers in the first place !)
I am gonna keep after this. No moves will be made prior to talking to Mr. David Ward.
MolaKule
Staff member
Possibly Dave can make you a custom blend if there is enough return on investment.
MolaKule
Staff member
Here is the TDS on the Eneos:"DirectRejection ULV Transaxle Fluid."
That does not "flow" like "OVERKILL 0W20."
https://www.eneos.us/wp-content/uploads/2024/10/PDS-ENEOS-e-Axle-Oil-20241023.pdf
They want a very low viscosity fluid in order to squeeze out every .01% of mileage by reducing viscous drag.
For an EVS fluid the copper strip corrosion is a 1B. I would expect at least a 1A rating.
Last edited:
MolaKule
Staff member
What source did you get this from?
Eneos is using Group III 2.5 cSt base oil with an additive package.
Sorry about the confusion. I was referring to the OP and Genuine Toyota e-Transaxle Fluid TE.
Again, I believe Eneos is going to be very close to the OEM.
Of course, HPL is true synthetic base stock, Group IV of highest quality, as density shows, and based upon common knowledge.
I need to change this stuff soon in a ‘25 Camry. It’s about to hit 30K, I’ll wait for an oil change. Unless I should push this to 60K.
