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How i changed my transaxle fluid

Posted: Fri May 06, 2022 7:24 pm
by Sam12345
Photos on how i changed my transaxle fluid

https://photos.app.goo.gl/YAXTgCXvbVTCboNK8

Re: How i changed my transaxle fluid

Posted: Fri May 06, 2022 8:00 pm
by Sam12345
Click on the photo and then comment below photo for the comment on each photo

I do not show removing skid plate or transaxle pan that part is pretty obvious. There is no drain plug, make sure you capture all the fluid to measure correct amount to put back in. It goes without saying this is how I did it. You take your own risks .

Re: How i changed my transaxle fluid

Posted: Mon May 09, 2022 11:43 am
by Porsche
I noticed you're not running stock tire sizes (or rims). How do you have it set up? How is it working out for you?

Re: How i changed my transaxle fluid

Posted: Mon May 09, 2022 2:23 pm
by Sam12345
Working out fine. I get 65 mile range driving agressive in city, 60 on freeway going 60 to 65mph. I can get 95 if i drive like an egg on accelerator going speed limit no highway (45mph or less). I got 205/50 R15 86H ventus 2 all the way around with ultralight Helium koning 15 inch rims. Hate the stock tires but i have that set also on the original rims that i can swap if i want to. I run tire pressure at 40 psi. Speedo is spot on with these tires fyi

Tires

https://www.discounttire.com/buy-tires/ ... ept-2-h457

Helium rims (mine are silver) these are about the lightest rims you can get within the cheap rims category

https://konigwheels.com/?s=Helium

https://www.discounttire.com/buy-wheels/konig-helium

Re: How i changed my transaxle fluid

Posted: Wed May 11, 2022 11:54 am
by NORTON
Sam,
Thanks so much for posting these pictures!
They are inspirational.
I need to do this work on mine....

Did it take more than 3 qts. ?
I saw the other thread. I'm sure Mobil 1 LV is fine. It's just gears and bearings in a box.

Re: How i changed my transaxle fluid

Posted: Wed May 11, 2022 12:46 pm
by Sam12345
Took about 4 quarts (3 3/4 to be more accurate)
Not sure what you mean by LV mobile one fluid should be fine its the correct fluid to use sanctioned by GM

Mobil 1™ Synthetic LV ATF HP is an advanced full synthetic automatic transmission fluid formulated from synthetic base oils and an advanced additive system. It is approved and licensed by General Motors against DEXRON® HP ATF.

https://www.mobil.com/en/lubricants/for ... -lv-atf-hp

Re: How i changed my transaxle fluid

Posted: Wed May 11, 2022 6:22 pm
by ElDobro
This fluid is made for the electric transmissions.
https://www.ebay.com/itm/294782849521?e ... Sw~ddgXiIV

Re: How i changed my transaxle fluid

Posted: Thu May 12, 2022 7:24 am
by NORTON
The Mobil 1 LV ATF HP should be fine.
The Spark EV drive unit is very simple.
I trust Mobil 1 products.

As Eldobro pointed out there is a newer spec for EV's from gm.
I may use that product,, just because.
https://www.rockauto.com/en/moreinfo.ph ... &jsn=10188

But then I found some confusion when searching for that ATF, among them this:

Genuine GM 19369363
Fluid,Automatic Transmission Dexron 212B Acdelco 1Qtx12

Part Description
Fluid,Automatic Transmission Dexron 212B Acdelco 1Qtx12
Brand
GM
Warranty
Genuine GM parts are backed by GM's factory warranty which are high-quality vehicle-specific with the right fit the first time.
Manufacturer's Notes
This part is discontinued. It is no longer available for purchase.


I'm going to do this service to my Spark EV this summer. I'm right at the mileage it is called for.
Further research on what to use is needed..... :roll:

EDIT: So it turns out I bought a gal of Redline D6 ATF a while back thinking I would do this work early.
That's what it's getting ! 8-)
D6 is their version of a Low Viscosity ATF. It will be fine. All it does is lube the gears and bearings and move the heat around. It's a synthetic also so heat should not be a problem.

2nd EDIT: Just bought this!
https://www.rockauto.com/en/moreinfo.ph ... 8600&jsn=9
So it's game on!
Sam, did you find a torque spec for the pan bolts?
And thanks for the tip that's it uses around 3.75 qts. !

Re: How i changed my transaxle fluid

Posted: Thu May 12, 2022 12:00 pm
by Sam12345
I just did them by feel. Ive done so many oil pans i got a feel for them but if you find the torque please post it.

I also used the rock auto kit

From manual

Electric Drive Unit DEXRON® HP Automatic Transmission Fluid (GM Part No. 19300536, in
Canada 19300537).

SERVICE BULLETIN
File in Section: -
Bulletin No.: 17-NA-398
Date: December, 2017
INFORMATION
Subject: Information on Correct Fluid for Bolt EV, Spark EV and Cadillac CT6 PHEV Hybrid
Electric Drive Units (Transmissions)

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Cadillac CT6
2017 2017 4EL70 (MRD)
Chevrolet
Bolt EV 1ET25 (MMF)
Spark EV 2014 2016 1ET35 (MME)
Involved Region or Country North America, N.A. Export Regions and Korea
Information
All of the vehicle applications listed above require DEXRON HP transmission fluid part
SK/Valvoline Fluid (GM Part No. 19331925, in Canada 19331926) from local stock/other
dealers.
If the GM part is not readily available, Mobil 1™ Synthetic LV ATF HP (Exxon Part No.
19353429, in Canada 19353430) can be used.
Version 1
Modified Released December 15, 2017

Re: How i changed my transaxle fluid

Posted: Fri May 13, 2022 7:22 am
by ElDobro
19369363 is still a current part number and the dealer I go to has it on the shelf. Where did you hear it has been discontinued?