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#4492802 - 08/19/17 12:46 PM Motorcraft Mercon LV @ 12K miles
Whimsey Offline


Registered: 12/22/02
Posts: 4047
Loc: The Garden State
I did a drain and fill on our 2017 Explorer with the 2.3 Eco Boost and the 6F35 transmission. It was the factory fill with 12,200 miles on it. I've been reading these transmissions tend to beat up the ATF early. It's ridiculously easy to change. I bought a 12 qt case for $60. I used almost 4 quarts for the change, 3.85 quarts to be exact. The attached photo shows the old Mercon LV on the left and the new Mercon LV on the right. The used Mercon LV was pretty dark, almost black at only 12,000 miles. I'm sending it to Blackstone for analysis, for S&G. We keep our vehicles for a LONG time and many miles, our 2005 Explorer has almost 194,000 miles with the original transmission which works like it did new. We've changed the fluid every 25-30,000 miles. That's a lot less expensive than a new transmission. I find it hard to believe that Ford calls for the first ATF drain and fill at 150,000 miles shocked2. Amazingly that's well out of warranty smirk. I'll post the Blackstone analysis when I get it back.

Whimsey

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#4492803 - 08/19/17 12:49 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
RF Overlord Offline


Registered: 11/08/03
Posts: 3755
Loc: Cape Cod, MA
Good on ya' for being proactive...especially since I've heard bad things about the 6F35. Maybe it was just the early units, but from the looks of that fluid I'd say 15,000 miles is about it.
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#4492815 - 08/19/17 01:06 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
Whimsey Offline


Registered: 12/22/02
Posts: 4047
Loc: The Garden State
I forgot to add that almost 7,000 miles of this was highway high speed driving in a 2 month period, not a lot of shifting which tends to cause more wear in the transmission.

Whimsey

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#4492819 - 08/19/17 01:10 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Yup i m glad i got my sis 2016 chevy equinox tranny flushed at 15k.
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#4492837 - 08/19/17 01:38 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
cb_13 Offline


Registered: 07/24/11
Posts: 907
Loc: Missouri
There is actually a tsb out for how soon the Mecon LV starts looking dark. Ford considers it a normal characteristic of the fluid. I believe they say it due to certain additives.

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#4492842 - 08/19/17 01:49 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
LotI Offline


Registered: 01/01/13
Posts: 1266
Loc: America's Dairyland
My E450 looked about the same at 20k. I dropped the pan, cleaned the magnet and changed the filter. At 30k I just used the drain plug to swap out 7qts. Sitting at 35k and it's still bright red.

I'll be doing the same to my Mazda6 in a few months. No recommended change interval from the mothership. But they still took the time to install a drain plug and dipstick. shrug At least it will be easier than my 2005 Mini Cooper S with the Aisin 6spd.

My last 2 Accords were extremely easy too. Drain plug and a dipstick on the '12; max fill plug on the '14.
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#4492843 - 08/19/17 01:51 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 468
Loc: Texas (south)
I agree with what cb_13 says. It could be the fluid itself and not really the tranny, though that would lead me to change it sooner, too.
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#4492847 - 08/19/17 01:58 PM Re: Motorcraft Mercon LV @ 12K miles [Re: cb_13]
RF Overlord Offline


Registered: 11/08/03
Posts: 3755
Loc: Cape Cod, MA
Originally Posted By: cb_13
There is actually a tsb out for how soon the Mecon LV starts looking dark. Ford considers it a normal characteristic of the fluid. I believe they say it due to certain additives.
Toyota T-IV is like that...turns a dark purple-ish colour fairly rapidly, but doesn't mean it's bad. I hadn't heard that about Mercon LV.
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Supercharged '03 Mercury Marauder - Trilogy Motorsports #61
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'00 Grand Marquis GS - daily driver
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#4492848 - 08/19/17 01:59 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
gabriel9766 Offline


Registered: 05/10/15
Posts: 936
Loc: Missouri
i did a drain and fill on my malibu at 25k and it was prob just a tad bit darker. GM says to service it at 45K under sever service conditions, and 150k under normal conditions. i plan on doing a drain and fill every 25k.
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#4492858 - 08/19/17 02:13 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
Onug Offline


Registered: 03/19/12
Posts: 344
Loc: Washington, USA
Very interesting. I think Ford recommends 100K miles on the F-150 6-speed trann. But poplar online mechanics recommend 50k at the most. I'm approaching 25k...gues I need to pull a sample.
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2016 F-150 3.5L Ecoboost
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#4492868 - 08/19/17 02:29 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
Nyogtha Offline


Registered: 10/13/14
Posts: 2319
Loc: San Antonio, TX
I did the first pan drop & filter change on the 6R80 in my wife's V6 Mustang this summer, at 43K miles. The factory fill Mercon LV that came out was a dark wine colored translucent purple but had zero brown or black in it. It was however darker than the Kendall Versatrans LV fluid I put in to replace the drained portion of the factory fill. I got about 8 qts changed of the just under 12 qt capacity. So perhaps transmission model matters.
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#4492886 - 08/19/17 02:54 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
pbm Offline


Registered: 04/19/04
Posts: 7597
Loc: New York
I have that 6F35 in the wife's 2016 Escape which is coming up on 16K....I plan on changing it when I have the bellypan off at the next oil change which is coming up in about a month.
Did you change it cold?....if not, how did you measure the amount to replace....Thanks
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#4492887 - 08/19/17 02:58 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Nyogtha]
Whimsey Offline


Registered: 12/22/02
Posts: 4047
Loc: The Garden State
Originally Posted By: Nyogtha
I did the first pan drop & filter change on the 6R80 in my wife's V6 Mustang this summer, at 43K miles. The factory fill Mercon LV that came out was a dark wine colored translucent purple but had zero brown or black in it. It was however darker than the Kendall Versatrans LV fluid I put in to replace the drained portion of the factory fill. I got about 8 qts changed of the just under 12 qt capacity. So perhaps transmission model matters.
.

What I've read and seen is this transmission model has had issues early on in the Fusion. Hopefully they corrected those issues. I don't know whether it matters but the 2.3 Eco Boost is fairly powerful, maybe that puts more strain on the transmission, though it's not driven like a hot rod. The total factory fill is only around 9 quarts, not a lot. However in the end since it's super easy to change the ATF and costs $20/change using Motorcraft Mercon LV it's a no brainer versus a new transmission down the road from not changing the ATF more frequently.

Whimsey

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#4492892 - 08/19/17 03:01 PM Re: Motorcraft Mercon LV @ 12K miles [Re: Whimsey]
dustyroads Offline


Registered: 05/13/13
Posts: 1061
Loc: upstate NY
The Explorer only has the 6F35 trans? Are you sure it's not the 6F55 ? My '11 Taurus had the 6F50 and I figured that the Explorer had the "55".

I replaced the Taurus' factory trans fluid (came out deep purple) around 30k miles with Maxlife and it not only shifted the same, but it maintained a bright red color for the last 45k miles that I owned the car.
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2013 F150 XLT 5.0 4X4 96k+
Edge 5W-30 / Fram 10575





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#4492896 - 08/19/17 03:06 PM Re: Motorcraft Mercon LV @ 12K miles [Re: dustyroads]
4WD Offline


Registered: 09/21/10
Posts: 6363
Loc: Texas
We did this before - 3.5 boost has 55 ...

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