Mercon or Mercon V?

[Bshmastr]

My owner's manual says regular Mercon in both tranny and t-case, but Haynes says Mercon V in the tranny and Mercon in the t-case. Right now I have Mobil 1 ATF in the t-case which meets Mercon, but not Mercon V specs. Is that OK?

Also, can I put Mobil 1 in the tranny since the owners manual says Mercon, or should I stick with Mercon V in the tranny?

 

[JDraper]

Go by the owner's manual. Mercon V is a relatively new fluid that (If I remember correctly) didn't exist when your truck was made. You can use the Mobil 1 if it meets or exceeds the Mercon specs.

 

[BradE.]

Mercon and Mercon V are NOT interchangeable, they are very different fluids. Stick with the required spec.

Not sure on a 95, but my 97 Explorer requires Mercon. But, then again I have a 1995 Lincoln that takes Mercon V. If the owners manual says regular Mercon, I would go with that.

Good Luck!

 

[Alec]

I know M 5 is required for 96.5 trannies and up, especially if they have updates.

 

[Bshmastr]

Thanks guys, I'll probably switch the tranny to Mobil 1. But don't manufacturers sometimes change the recommendations for fluids? How do I find out what Ford currently recommends for the '95 model year 4R55E?

 

[Alec]

Call up your local tranny shop.

 

[jasonb]

the tranny fluid fill cap on mine has "USE ONLY MERCON V" stamped on it in big bright letters.

 

[DaleG]

While I was at Autozone the other day I noticed that they are starting to carry some Mercon V fluids. They had AAMCO MerconV @ $2.99 qt and I believe Castrol which was slightly more. They both say on the bottle Synthetic blend fliud MerconV.

Dale