Transmission flush 1997 Explorer

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I have 191,000 miles on my Explorer have flush the transmission every 30,000 miles. I do it myself thru the transmission cooler pumping 2 quarts out pouring 2 quarts in. Has been a Great SUV! Will I benefit using Mercon V over regular Mercon?
 
Why only two quarts? You could do the whole amount using that method pretty easily and only have to do it every 50k, at the most. Upgrading the a newer version of fluid won't hurt anything and may help the transmission run cooler.
 
Does your transmission have a drain plug? If not, Dorman might make an aftermarket pan that has one, making future ATF changes much easier
smile.gif


There is nothing wrong with using Mercon V over regular Mercon, but you may wish to consider using a full synthetic ATF like the popular Maxlife
 
When I do the transmission flush I run 14 quarts thru the system and move the gear selector thru all the gears while doing the flush.
 
Did a drain & fill on friend'sExplorer, '04 V-6 @ 57K. The 5 qt which drained wasn't too bad.
Used Mercon V. The family also had a '97 F-150 and the Mercon spec was superseded to Mercon V.
Rigged a pressurized bottle to fill through "that thing" mounted in the oil pan.

What's that fitting called?
 
Originally Posted By: racer44
I have 191,000 miles on my Explorer have flush the transmission every 30,000 miles. I do it myself thru the transmission cooler pumping 2 quarts out pouring 2 quarts in. Has been a Great SUV! Will I benefit using Mercon V over regular Mercon?


I'd stick with what you are doing, it's working!
 
Originally Posted By: racer44
I have 191,000 miles on my Explorer have flush the transmission every 30,000 miles. I do it myself thru the transmission cooler pumping 2 quarts out pouring 2 quarts in. Has been a Great SUV! Will I benefit using Mercon V over regular Mercon?

Only Mercon V for these transmissions. If you have the v6 w/ 5R44E, These transmissions have a temperature valve, so you aren't flushing the converter unless you are at operating temperature.
 
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The Mercon V is an improvement over the Mercon. Besides being a synthetic blend it likely has a stronger add package than most conventional Mercons. Merc V shears at about half the rate of Mercon. So your fluid will last longer. By around 2003 Ford was recommending Mercon V in most of its formerly Mercon transmissions. With cheap SuperTech Mercon V at $4.25/qt (it meets Ford approvals), no reason not to use it or a similar specced fluid. After 30K miles the Mercon would probably shear down from 7.4 to 4.0-4.5 cSt. While the Merc V might still be around 5.0-6.0. A full synthetic like Mobil 1 ATF would probably end up around 6.5-6.8. The Mercon V would maintain its transmission hydraulic characteristics longer than the Mercon...which would benefit better shifting and less wear & tear.
 
I wouldn't say there is a benefit, but Mercon V will work fine.

These transmissions aren't that picky...they just like clean fluid.

A friend recently bought a '96 with a 4R55E and 127K miles...we filled with Maxlife after a pan drop.
 
Originally Posted By: slacktide_bitog
Does your transmission have a drain plug? If not, Dorman might make an aftermarket pan that has one, making future ATF changes much easier
smile.gif


There is nothing wrong with using Mercon V over regular Mercon, but you may wish to consider using a full synthetic ATF like the popular Maxlife

No drain plug on the factory pan, but Dorman does make a pan with a plug.
 
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