Transmission Fluid Change

[Crumm]

How often do you toss it? Every time you change the fluid or does it trap much?

 

[chaddiesel]

I thought that these trucks came with DexronIII/MerconV in the transmission. I have heard about the torque converter "shuttering" if the wrong fluid is used, what does it really have and what do you want to replace it with?

 

[JimmyDee]

I thought that these trucks came with DexronIII/MerconV in the transmission. I have heard about the torque converter "shuttering" if the wrong fluid is used, what does it really have and what do you want to replace it with?

Never put Mercon V in the tranny. Ford says no, Mark K, a Ford tranny engineer says no, your owners manual says no and it is even printed on your dipstick. Dexron 111 or Mercon is the only acceptable ATF and it says not to use a duel rated ATF that includes Mercon V in its label. Your tranny will be short lived with Mercon V in it.
DO NOT USE MERCON V.
Jim

 

[hheynow]

How often do you toss it? Every time you change the fluid or does it trap much?

I replace mine every 15K. Never opened up an old one to see how many metal shavings were stuck to the magnet, but it never had a flow restriction.

 

[Crumm]

Never put Mercon V in the tranny. Ford says no, Mark K, a Ford tranny engineer says no, your owners manual says no and it is even printed on your dipstick. Dexron 111 or Mercon is the only acceptable ATF and it says not to use a duel rated ATF that includes Mercon V in its label. Your tranny will be short lived with Mercon V in it.
DO NOT USE MERCON V.
Jim

So what are you trying to say? Do you mean I should not use Mercon V

 

[JimmyDee]

So what are you trying to say? Do you mean I should not use Mercon V

Ya, you got the idea. As often as this comes up, you still see tons of people that think Mercon V is some type of new up grade for Mercon ATF. Even some of the less informed dealers think that.
Jim

 

[hheynow]

Never put Mercon V in the tranny. Ford says no, Mark K, a Ford tranny engineer says no, your owners manual says no and it is even printed on your dipstick. Dexron 111 or Mercon is the only acceptable ATF and it says not to use a duel rated ATF that includes Mercon V in its label. Your tranny will be short lived with Mercon V in it.
DO NOT USE MERCON V.
Jim

Correct Ford tranny fluids listed here .

 

[RenoF250]

How do you know if it does not have any restriction? I have never had anything in my fluid when I changed it, some metal on the magnets but the fluid was clean.

 

[orion_134]

By using the link above, it says Mercon V is recommended for my 1999 4r100 is this not the case? I hope not because I just flushed my tranny with Valvoline Mercon V and I've put almost 1000 miles on it...Now I'm scared to drive the truck!
Jesse

 

[orion_134]

Anyone?