Transmission Fluid

[Eagle]

My 1992 Cabby is low on transmission fluid (automatic) and I see it says to use Dexron or Dexron II. My question is I have two quarts of Dexron III sitting in my supply cabinet. Can I use Dexron III or will I need to purchase some Dexron or Dexron II? Will putting the Dexron III in the transmission hurt it?

Thanks for your help.

[Briano1234]

Dextron III is good, that is what I am running in both of mine.

[Eagle]

In other words it won't hurt to mixed the Dexron III with whatever is in there now, correct?

Thanks for your help.

[Briano1234]

In other words it won't hurt to mixed the Dexron III with whatever is in there now, correct?

Thanks for your help.

DextronIII is backward compatible. But I would exchange it, as in suck out the old and then refill with new. Won't hurt and will be getting contaminates out of the tranny.

To do a exchange it takes about 9 quarts.
That is Drain out 3, then fill with 3 new. Run the tranny drain out 3 and insert 3
then run the tranny, then drain out 3 and fill with 3.

I would even go so far as to use 1 can of Seafoam ATF.

I use a long piece of clear vinyl tube, that is in a quart jar, with another piece of tube going to my mighty vac, and suck it out via the dip stick.

[Eagle]

Thanks Brian, I'll try that.