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Motorcraft Mercon V opinions? #5143951
06/25/19 05:28 PM
06/25/19 05:28 PM
Joined: Jun 2019
Posts: 30
New Bern, NC
Vigilant Offline OP
Vigilant  Offline OP

Joined: Jun 2019
Posts: 30
New Bern, NC
Went back 3 years and could not find anything. Motorcraft Mercon V does not even show up in the top 5. Castrol variants show up twice. I just had a 2006 4R75E and 98000 miles self-flushed and refilled with Motorcraft Mercon V. A few years ago, I had another 2006 4R75E self-flushed and refilled with Mobil 1 ATF. 10000 miles later, the trans failed. I suspect it was because I refilled a high mileage trans with Mobil 1, and the trans didn't like it. Had it rebuilt and filled with Mobil 1, and it's doing great.

Is Motorcraft Mercon V worth using, or should I have bought Castrol? Thanks in advance.


2006 F-150 5.4 3V 4X4. M1 EP 5W20, Motorcraft oil filter. Changing to Fram Ultra next oil change.

2006 F-150 4.6 2V 4X2. Same as above.
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144043
06/25/19 07:43 PM
06/25/19 07:43 PM
Joined: Dec 2005
Posts: 11,682
Upper Midwest
kschachn Online content
kschachn  Online Content

Joined: Dec 2005
Posts: 11,682
Upper Midwest
If it is licensed MERCON V fluid (which I believe the Castrol is) then it won't make a bit of difference.


1994 BMW 530i, 242K
1996 Honda Accord, 277K
1999 Toyota Sienna, 418K
2000 Toyota ECHO, 281K
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144146
06/25/19 10:24 PM
06/25/19 10:24 PM
Joined: Apr 2012
Posts: 6,872
MA
Wolf359 Online content
Wolf359  Online Content

Joined: Apr 2012
Posts: 6,872
MA
Yeah, it's all the same stuff, Castrol, Motorcraft, Supertech. Supertech is probably the cheapest. I used that in my Taurus transmission a few times and it was fine. If you don't want to do Super Tech at Walmart, there's always Castrol. Valvoline also sells one, but it's not really certified as Mercon V, the fine print just says it's suitable for applications that call for Mercon V although I've used it in the past when I got it on clearance at $2 a quart.

Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144168
06/25/19 11:18 PM
06/25/19 11:18 PM
Joined: Sep 2015
Posts: 4,231
Connecticut
69GTX Online content
69GTX  Online Content

Joined: Sep 2015
Posts: 4,231
Connecticut
If I could buy the Motorcraft Mercon V for the same $4.75 that SuperTech sells for, I'd buy it. But since it costs like $6.50 or so that's not going to work. Just did my 2001 Lincoln transmission fluid change with SuperTech Mercon V....16 qts.

I'm sure the add packs for Castrol, MC, and ST are all pretty similar. They are all semi-synthetic. I'd rather use these than the full synthetic Mobil 1, Amsoil ATF, or Red LIne D4 for example. I'll just change it more often....every 15K to 20K miles depending on how it looks.

Last edited by 69GTX; 06/25/19 11:19 PM.

----------------

2001 Lincoln Cont 4.6L DOHC/ 50K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144206
06/26/19 12:54 AM
06/26/19 12:54 AM
Joined: Jun 2019
Posts: 30
New Bern, NC
Vigilant Offline OP
Vigilant  Offline OP

Joined: Jun 2019
Posts: 30
New Bern, NC
Thanks to the drain plug, I will drain the pan every 8000 miles when the oil (M1 EP) is changed, and add 4 fresh quarts. That's probably overkill, but I'm comfortable with it.


2006 F-150 5.4 3V 4X4. M1 EP 5W20, Motorcraft oil filter. Changing to Fram Ultra next oil change.

2006 F-150 4.6 2V 4X2. Same as above.
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144283
06/26/19 05:36 AM
06/26/19 05:36 AM
Joined: Dec 2016
Posts: 9,119
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 9,119
Waco, TX
Originally Posted by Vigilant
Thanks to the drain plug, I will drain the pan every 8000 miles when the oil (M1 EP) is changed, and add 4 fresh quarts. That's probably overkill, but I'm comfortable with it.



No kidding! That's every 2 months for me!

All I ever buy for my 4R75E is SuperTech Mercon V


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144297
06/26/19 06:13 AM
06/26/19 06:13 AM
Joined: Dec 2017
Posts: 4,619
SE British Columbia, Canada
Snagglefoot Online content
Snagglefoot  Online Content

Joined: Dec 2017
Posts: 4,619
SE British Columbia, Canada
Here is the Castrol product. smile

C781972A-0C30-41FA-AF1D-1B69D5C5E1FF.jpeg

If you want the job done right......do it yourself.
Re: Motorcraft Mercon V opinions? [Re: Vigilant] #5144300
06/26/19 06:20 AM
06/26/19 06:20 AM
Joined: Oct 2004
Posts: 3,865
Michigan
dwcopple Offline
dwcopple  Offline

Joined: Oct 2004
Posts: 3,865
Michigan
I just picked up a '98 Mustang GT and am looking to extract the fluid from the pan and refill with Mercon V. I will most likely use SuperTech as it is readily available and priced right. I wish MaxLife was okay for Mercon V as it was a spectacular fluid in past cars I've ran it in.


2017 RAM Big Horn 4x4 3.6L V6
2011 Chrysler 200 Limited 3.6L V6
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