Dexron III questions.....

CliffA

CliffA

Well-Known Member
Dec 29, 2009
4,712
Lake Norman, NC
Boat Info
2001 Sea Ray 340DA
Name: 'Happy Place'
4.5kW West. Generator
Purchased Nov. 2014
Fresh Water Use
Engines
Twin Merc. 6.2L (MPI)
640 hp (Total)
Raw Water Cooled
V-Drive Transmissions
I want to change the fluid in my V drives this year....they hold 3 qts. of Dexron III ATF each.....I can't find any ATF locally that is labeled just plain ole Dexron III but I see some brands of ATF that claim their ATF is compatible with transmissions requiring Dexron III....what I don't know is if these brands also contain additives that may be harmful to my V drives...

I don't want to put the wrong fluid in the tranny so can anyone tell me what ATF they have used in their V drives?......

Thanks...
cliff
 
GM vehicles that originally called for DEXRON III have been changed and GM recommends DEXRON VI.

There was a technical service bulletin 04-07-30-037C
On this. Google the bulletin number and you will see the information GM included regarding DEXRON VI. It’s from 2007.

Perhaps the manufacturer of your V-Drives has issued a similar bulletin? Give them a call and see.
 
Last edited:
NAPA used to offer a DEX-III. been a couple years since i got some to service a boat trans. I do recall seeing a statement from one trans/v-drive manufacturer that stated they preferred the use of DEX-III rather then the updated API. I t was in older correctcraft boats.
 
Castrol...Transmax...Dex/Merc. It's the old Dex 3, not compatible with Dex 4
 
scoflaw said:
Castrol...Transmax...Dex/Merc. It's the old Dex 3, not compatible with Dex 4
Click to expand...


Correct, Dex IV and Dex V would definitely not be compatible. Dex VI possibly is a compatible alternative, but further verification from the manufacturer is needed.
 
thanks for all the replies gentlemen....

cliff
 
For you guys with ZF transmissions, ZF has published a list by brand and trade name for acceptable fluids for each of their transmission types. I posted it a couple of times so you might try searching the site here for it. The post contains a link to the ZF publication.
 
Hello,

I got mobil 320 ATF Dex lll premium oil for my ZF 63 IV V-drives.

This oil is ZF 04D compatible IF you look at the specs.

/ Kim
 

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Kimpa said:
Hello,

I got mobil 320 ATF Dex lll premium oil for my ZF 63 IV V-drives.

This oil is ZF 04D compatible IF you look at the specs.

/ Kim
Click to expand...

It's also looks like it is on the list posted above listed under ExxonMobile ;)

EXXONMOBIL CORPORATION, HOUSTON, TX/US
MOBIL ATF 320
ZF000043

-Kevin
 
KevinC said:
It's also looks like it is on the list posted above listed under ExxonMobile ;)

EXXONMOBIL CORPORATION, HOUSTON, TX/US
MOBIL ATF 320
ZF000043

-Kevin
Click to expand...
Hello Kevin,

Yeah exactly, this one i use.

/ Kim
 

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