A4LD tranny fluid question.

[joe123#]

I have an A4LD auto trans 91 ranger. Now this may sound strange but, I put in a rebuild and got my fluid from O'rilies, it was ATF for older fords that use Dextron II -III and or Mercron. It has a strong odor of friction modifier in it. Then I was a little low, and picked up a qt at Autozone, same spec's dex II-III
or merc, However this had no smell of friction modifier. Sorry to say, it kinda smelled liked a dead rat. I wonder why there can be such a big difference in the smell. And both were not senthic. (any thoughts)

 

[AzLizard]

I think the older mercon was the demise of my 94 a4ld.
When I put in a 91 my research resulted in my using mercon5.
The only place I could find it was merles automotive.