I've asked before in another thread, but I never got an answer: What size inline transmission filter should I buy? 3/8,5/16,1/2?

Thanks!

 

This product appears to be an aftermarket add-on filter for the transmission fluid. Do you believe such a device is required and of benefit?

 

Never heard of anyone using one.

 

It was recommended by ford for the 5r55n transmission. I've just seen others on here saying that they have installed it, but no mention of size.

 

+1, nor any recommendation from Ford (?)

 

Chase6495 - I think people install the correct filter inside the trans, replacing the old one. They're not adding an extra one.

 

I use the following thread as a guideline: https://www.jaguarforums.com/forum/showthread.php?t=45131&styleid=5

The poster seems to know what he's talking about, so I trust it.

Edit: You commented on that thread, so I assume you're familiar with the contents. I don't believe the poster is on this forum any longer though, so I don't think he would answer a message.

 

You're reading into a brief comment something not intended. I would not fit any extra filter. No-one's reporting oil filtration problems.

 

+1.

Just another add-on widget attempting to fix a non-existent problem.

 

I'll take your word for it. Thank you!
-Chase

 

The use of supplementary filtering can be found on many forums that are less inhibited about exploring alternatives than JF. Magnefine is just one of the possible solutions.

But, the OP is not mistaken that the Magnefine is recommended by at least one OEM as part of a repair procedure. The specific Magnefine part number is identified as being mandatory for certain automatic transmission repairs in the factory documentation.

Since these are often warranty repairs, no doubt the factory has determined that the extra cost is necessary and warranted.

 

Do you recommend any supplementary filtering?

 

I don't install them but the others are correct. It's very common to see this recommendation after doing any transmission work. Jaguar/Ford even has this is some TSB's.

I don't think it will hurt but I don't install them for several reasons.

They are an add on so more places to leak.

Not much room in the S Type to install it.

As posted above not really needed. We have a filter built into the pan.
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Here's what Ford has to say on the matter:

"OASIS SPECIAL SERVICE MESSAGE NUMBER: 21035
MESSAGE TITLE: AUTOMATIC TRANSMISSION INLINE FLUID FILTER ELIMINATED AND NO LONGER REQUIRED AFTER INTERNAL TRANSMISSION REPAIR OR REPLACEMENT.

APPLICABLE VEHICLES :
2009 - 2010 TRUCK : 00016 E-SERIES
2009 - 2010 TRUCK : 00134 EXPLORER 4DR
2009 - 2010 TRUCK : 00110 EXPLORER
2009 - 2010 TRUCK : 00029 F-SERIES LD
2009 - 2010 TRUCK : 00028 F-SERIES
2009 TRUCK : 00175 F-SERIES MOTORHOME/COMMERCIAL
2009 - 2010 TRUCK : 00070 MOUNTAINEER
2009 - 2010 CAR : 00071 MUSTANG
2009 - 2010 TRUCK : 00081 RANGER
2009 - 2010 CAR : 00094 TOWN CAR
2009 HEAVY TRUCK : 00168 LOW CAB FORWARD

OASIS MESSAGE :
2009-UP FORD/LINCOLN/MERCURY VEHICLES INSTALLATION OF INLINE TRANSMISSION FLUID
FILTER/KIT IS NO LONGER REQUIRED WITH TRANSMISSION OVERHAUL OR REMAN TRANS
ASSEMBLIES. ENGINEERING TESTS HAVE DETERMINED THE INLINE TRANSMISSION FLUID
FILTER IS INEFFECTIVE AND WILL NO LONGER BE INCLUDED WITH REMAN TRANSMISSION
ASSEMBLIES. THE INSTALLATION OF THIS FILTER HAS SHOWN TO INCREASE THE POTENTIAL
OF TRANSMISSION FLUID LEAKS AT THE INLINE FILTER CLAMP CONNECTIONS AND
COMPROMISING THE INTEGRITY OF THE FLUID COOLER LINE AND THE INTERNAL INLINE
FILTER BYPASS HAS BEEN SHOWN TO BE INEFFECTIVE. IF THE TRANSMISSION TURBO HEATED
COOLER LINE FLUSHER(OR EQUIVALENT)IS NOT UTILIZED, PLEASE FOLLOW THE RECOMMENDED
PROCEDURES IN THE APPROPRIATE VEHICLE WSM. FOLLOW SERVICE PROCEDURE IN SECTION
307-01 TRANSMISSION FLUID COOLER BACKFLUSHING AND CLEANING."

 

True and I have seen this too. But there are a number of other TSB's and other things that had the filter recomendation.

But notice your dates stop at 2010. I wonder if Ford is still saying this?
I just did not want to cut into my cooler lines. Worried too much about leaks. Same as Ford I guess.
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The key point is that the filters were intended to be installed after transmission replacement where there was a concern that debris could still be present from the failed transmission. The bulletin rescinds that practice.

I can't find any current recommendation that they be installed with either replacement or original transmissions.