Dexron II ATF

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528i-1981
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Dexron II ATF

Post by 528i-1981 » Sat Sep 08, 2018 6:18 pm

The owner's manual specifies Dexron II D20 ATF, which is of course long gone. Is it preferable to use Dexron VI currently on the shelf of the Dex/Merc formulation which is supposed to be the equivalent of Dexron III? I understand there are viscosity differences, but that may not matter as much as the anticorrosive additives.
(oo=00=oo) Eric
1981 528i Manual

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Robert Bondi
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Re: Dexron II ATF

Post by Robert Bondi » Sun Sep 09, 2018 12:55 pm

Your signature says 5-speed, so I assume you're just talking about power steering. I'm just running the current Dex/Merc as you mentioned for P/S fluid with no problems.
Robert
77 530i
77 Euro 528

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528i-1981
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Re: Dexron II ATF

Post by 528i-1981 » Sun Sep 09, 2018 7:24 pm

Correct, Robert, for the PS. Thanks for the message on Dex/Merc. I found some other boards where E28 guys were running either Dexron VI or Dex/Merc with no problems, so I grabbed some Dexron VI at a local shop and topped off the reservoir. I'll report back if anything melts, burns, squeals or smells bad. The fluid level was pretty low so I'm enjoying the improvement, especially at slow speeds.
(oo=00=oo) Eric
1981 528i Manual

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Lock
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Re: Dexron II ATF

Post by Lock » Tue Oct 02, 2018 8:54 pm

I use DexIII but that's because I have about 10 bottles of the stuff some former housemates left behind from their unreliable cars so I slowly go through it. Don't forget there's a filter down the bottom of the P/S reservoir which is only a couple of bucks for a new one. I ran a flush of Seafoam trans tune through it, plus put a magnet from a magnefine filter in there (mostly because it was just laying around though).
1979 528i 5-speed conversion G260/6, Motronic 1.3 179
1980 Honda CX-500

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