What trans fluid and how much

[jyarber1]

Im going to do a filter change on my 00 2wd.. What brand fluid and how much do I need for a filter swap..

[NCHornet]

If the trans has never been rebuilt you need to use Mercon/Dexron III . Please don't anybody post that Mercon V has been reformulated, it hasn't, and your owners manual says specifically not to use Mercon V. Yes it is true that Ford is now stating it is okay to use, all of a sudden, imagine that. I have discussed this on the forum before so do a search. Bottom line is Mercon/Dexron III is the only ATF to be used in a 4R100. They stopped making it in June of 2007, when the supply is gone, it's gone, so I would stock up. Follow the self flushing technique to get all the fluid changed and you will be good to go.

NCH

[Quickhorse]

This is what I used . . .

http://www.amsoil.com/StoreFront/images/atd_1g_300.jpg

AMSOIL - Synthetic Automatic Transmission Fluid (ATD)

[quick_4.6]

I also have a 2000 2wd PSD and I changed the trans oil and filter myself with the help of this forum and my amsoil rep. Here is what i learned.

#1 Amsoil ATF did not cause any issues. Around 7 qts in the pan and 20 total used if flushing system.

#2 It was really easy to do with a helper.

#3 Leave old filter in for 100-250 miles after oil change. Your old trans will release alot of sediment and built up deposits once you put in new oil with fresh detergents. Afterwards, drain oil into a clean pan and change filter and replace with drained oil.


The biggest cause of a trans failure, after oil service, is a clogged filter!

[Quickhorse]

Originally Posted by quick_4.6

I also have a 2000 2wd PSD and I changed the trans oil and filter myself with the help of this forum and my amsoil rep. Here is what i learned.

#1 Amsoil ATF did not cause any issues. Around 7 qts in the pan and 20 total used if flushing system.

#2 It was really easy to do with a helper.

#3 Leave old filter in for 100-250 miles after oil change. Your old trans will release alot of sediment and built up deposits once you put in new oil with fresh detergents. Afterwards, drain oil into a clean pan and change filter and replace with drained oil.


The biggest cause of a trans failure, after oil service, is a clogged filter!

This is why I use an external inline filter as well!

[jyarber1]

Is there a good write up on how to flush the whole system?? So ford says the reformulated Mercon 5? Do you guys think they are lying or just full of it?

[NYMustang50]

I personally haven't had any problems with it. Ive used Mercon 5 in all my vehicles since the tsb came out that SAID it was OK to use it.

[RadarRider]

Originally Posted by NCHornet

If the trans has never been rebuilt you need to use Mercon/Dexron III . Please don't anybody post that Mercon V has been reformulated, it hasn't, and your owners manual says specifically not to use Mercon V. Yes it is true that Ford is now stating it is okay to use, all of a sudden, imagine that. I have discussed this on the forum before so do a search. Bottom line is Mercon/Dexron III is the only ATF to be used in a 4R100. They stopped making it in June of 2007, when the supply is gone, it's gone, so I would stock up. Follow the self flushing technique to get all the fluid changed and you will be good to go.

NCH

YES!!! I had been worried about this for a long time! I had read about Mercon V & the whole owner's manual saying not to use it. When I did my intercooler swap, I had lost a lot of ATF. I bought the only other thing I could find @ NAPA & it's NAPA brand Mercon/Dexron III. MAN, that makes me feel better!

[jyarber1]

What about the mercon v thats no good?

[RadarRider]

Originally Posted by jyarber1

So ford says the reformulated Mercon 5? Do you guys think they are lying or just full of it?

With Ford? It's hard to tell nowadays.