Mercon V in a Mercon Application?

[dsmith41]

For my Ranger, the transfer case calls for Mercon ATF according to the manual but I have a few bottles of Mercon V laying around from the transmission pan drop I did a few months ago. I would like to just use the left over Mercon V and I was wondering if that would be okay.

My understanding is that Mercon V is an updated version of Mercon that can can be used in place of Mercon. However, Mercon cannot be used in place of Mercon V. Is this true?

 

[StevieC]

That is how I understand it yes...

 

[beast3300]

I think the biggest thing with Mercon V and Mercon is just that Mercon 5 is a blend. There might be an additive change but somehow I doubt it.

So yes, mercon V in mercon application is ok. The other way around isn't recommended.

 

[Bluestream]

Originally Posted By: dsmith41
For my Ranger, the transfer case calls for Mercon ATF according to the manual but I have a few bottles of Mercon V laying around from the transmission pan drop I did a few months ago. I would like to just use the left over Mercon V and I was wondering if that would be okay.

My understanding is that Mercon V is an updated version of Mercon that can can be used in place of Mercon. However, Mercon cannot be used in place of Mercon V. Is this true?


I would use a good synthetic ATF in the transfer case of the Merc V

 

[bdcardinal]

fwiw when Ford officially dropped the Mercon spec, they added Transfer Case Fluid for all applications calling for Mercon instead of updating them to Mercon V.

 

[Ben99GT]

That is true, but Mercon V appears to be working just fine in transfer cases.

 

[mechtech2]

Mercon V was said to be no good for Mercon applications [from Ford].
But Ford changed their minds, and now MerconV is very good for Mercon applications.
It always was OK, in other words.

 

[Ben99GT]

Ford was really commenting on their own Motorcraft fluids.