Mercon or Mercon V

Reply Subscribe

Thread Tools

Search this Thread

Jul 26, 2003 | 09:22 AM

#16

allamericanman

Thread Starter

Junior User

Joined: Jul 2003

Posts: 72

Likes: 0

From: Florida

Mercon or Mercon V

Well, the dealer flushed my tranny and filled it with Mercon yesterday. Everything is good again.

I bet I have one of the cleanest transmissions in town now.

Get this. Just for the fun of it, I bought a Haynes repair manual and looked to see what fluid they say goes in the 4R100. It says all 1998 and later trannys take Mercon V. It is kind of sad that there is so much misinformation about this subject.

I am just glad this forum is here and thanks to you all for your replies. It was a big help.

Jul 28, 2003 | 04:21 AM

#17

GR8Diesel

Senior User

Joined: Jun 2003

Posts: 439

Likes: 0

From: Burnsville, MN

Mercon or Mercon V

I looked at my manual, it says the 4R70W box gets Mercon V, where the 4R100 box gets Mercon. Interesting that they give you this information, but don't tell you how to determine which one you have :-) I'm pretty certain that I have the 4R100.

Just thought I'd share perhaps the reason for the ambiguity in the marketplace.

Jul 28, 2003 | 05:05 PM

#18

allamericanman

Thread Starter

Junior User

Joined: Jul 2003

Posts: 72

Likes: 0

From: Florida

Mercon or Mercon V

I received a message today on my answering machine from the customer service center at Ford dealer that put the wrong transmission fluid in my Expy. They wanted to know if I was happy with the service. I called them back when I got home and talked to the lady about what had happened. She was aware of the incident and said that the service manager had taken care of the problem. She said that the guys now know to read the dipstick to make sure the proper fluid is put in. Genius!

Jul 29, 2003 | 05:09 PM

#19

mtblocker

New User

Joined: Jul 2003

Posts: 11

Likes: 0

Mercon or Mercon V

buzzard, I can't find this information in print. Would it be possible to fax me a copy of that particular page along with shop manual name, year, etc. My situation is about to get sticky. Ford seems to be behind me and indicates the dealer is wrong however they don't have control over specific dealers. This particular dealer indicates the fluids are the same, backwards dateable and has done no harm.

So far the dealer has changed their story twice now, I'd like to have the proof on paper rather than a forum discussion.

Thanks for any help anyone can provide.....

Jul 30, 2003 | 09:47 AM

#20

buzzard

Logistics Pro

Joined: Oct 2000

Posts: 3,960

Likes: 5

From: All over Texas

Mercon or Mercon V

Quote:

Originally posted by mtblocker
buzzard, I can't find this information in print. Would it be possible to fax me a copy of that particular page along with shop manual name, year, etc. My situation is about to get sticky. Ford seems to be behind me and indicates the dealer is wrong however they don't have control over specific dealers. This particular dealer indicates the fluids are the same, backwards dateable and has done no harm.

So far the dealer has changed their story twice now, I'd like to have the proof on paper rather than a forum discussion.

Thanks for any help anyone can provide.....

Sure, shoot me an email at ralph_malph at earthlink.net.

Jul 30, 2003 | 04:15 PM

#21

allamericanman

Thread Starter

Junior User

Joined: Jul 2003

Posts: 72

Likes: 0

From: Florida

Mercon or Mercon V

If you have the owners manual that came with the truck, show them that and see how they justify its warnings against Mercon V.

Good luck mtblocker and be sure to let us know what happens. This is getting interesting!

Jul 31, 2003 | 06:48 PM

#22

jonmech

Freshman User

Joined: Jul 2003

Posts: 45

Likes: 0

Mercon or Mercon V

ford tells the mechanics that you can put mercon v into
a merconIII trans , but you can't put merconIII into a merconV
trans. The difference is that merconV has friction modifier in it.

Jul 31, 2003 | 07:15 PM

#23

mtblocker

New User

Joined: Jul 2003

Posts: 11

Likes: 0

Mercon or Mercon V

You are wrong. I have it in writing. Ford says you can't interchange Mercon and Mercon V with this transmission. Perhaps Mercon 3 and Mercon are different, I don't know. In my case, the dealership has now stepped up and agreed they are at fault. They now acknowledge these fluids can't be interchanged as previously assumed. Many of these dealers are making stupid assumptions. In my case, they will pay. The dealer is changing the fluid and will now be responsible for any future problems with my transmission. It's all black and white and easy to litigate. I think the fluid change will resolve the problem and I'll keep everyone updated. I've also gotten assurance the dealership will make the transmission right if the fluid change does not correct the problem.

FTE Stories

Ford Trucks for Ford Truck Enthusiasts

Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Verdad Gallardo

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Joe Kucinski

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Brett Foote

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

Aug 2, 2003 | 12:22 AM

#24

jonmech

Freshman User

Joined: Jul 2003

Posts: 45

Likes: 0

Mercon or Mercon V

Will when some of us gone to school they told us this. Its not a assumptions on the mechanics. its ford one tell us one thing and somebody else telling us another. Even are managers called around to find the right answer. When I do a trans flush I use the orginal fluid only. So I'm not telling anybody to use mercon V in their truck. use the mercon that is required don't take any chances.