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#1804163 - 03/04/10 09:04 PM 07 Mustang Power Steering Fluid
HaroldCallahan Offline


Registered: 01/06/05
Posts: 45
Loc: Northern Colorado
Doing oil change this evening on my '07 Mustang and noticed the power steering fluid is at the add mark. Manual says to use Mercon fluid.

Is Valvoline DexMerc going to be OK to use, or is there something else that I should be putting in there ?

Thanks

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#1804164 - 03/04/10 09:05 PM Re: 07 Mustang Power Steering Fluid [Re: HaroldCallahan]
Nick R Offline


Registered: 07/14/09
Posts: 10456
Loc: Amherst, OH
Mobil 1 ATF would be my choice.
_________________________
13 Ford Focus SE 2.0L/33,000miles/Pennz Plat PurePlus 0W-20/FRAM Ultra
13 Chevy Traverse 3.6L/14,000mi/QSUD 5W-30/FRAM Ultra
11 Chevy Cruze 1.4T/32k

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#1804168 - 03/04/10 09:08 PM Re: 07 Mustang Power Steering Fluid [Re: Nick R]
AdRock Offline


Registered: 06/05/09
Posts: 714
Loc: Texas
Same here. M1 ATF is great stuff. My PS seems to like it much better than the mercon.


Edited by AdRock (03/04/10 09:09 PM)
_________________________
2002 Mustang GT
1995 Ford F150
2003 Honda Accord

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#1804171 - 03/04/10 09:09 PM Re: 07 Mustang Power Steering Fluid [Re: HaroldCallahan]
beast3300 Offline


Registered: 12/24/09
Posts: 2995
Loc: Ohio
Originally Posted By: HaroldCallahan
Doing oil change this evening on my '07 Mustang and noticed the power steering fluid is at the add mark. Manual says to use Mercon fluid.

Is Valvoline DexMerc going to be OK to use, or is there something else that I should be putting in there ?

Thanks


Yes that will be fine.
_________________________
'03 Regal GS L67: PUP 5w30/XG3980, Filtermag

'99 Grand Prix L36: QS Dexos blend 5w30/PF47 Classic, Filtermag


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#1804212 - 03/04/10 09:49 PM Re: 07 Mustang Power Steering Fluid [Re: beast3300]
ewetho Offline


Registered: 05/05/06
Posts: 1304
Loc: Kankakee, IL
We only use Mercon V at the dealer. It is what is in it from the factory.

I would stick to that.
_________________________
2004 Neon SE 2.0L Current Fill
Motorcraft 5W-30, Motorcraft FL-300

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#1804216 - 03/04/10 09:50 PM Re: 07 Mustang Power Steering Fluid [Re: ewetho]
Nick R Offline


Registered: 07/14/09
Posts: 10456
Loc: Amherst, OH
I actually use a sort of combination. I originally replaced the PSF with Valvoline MAxlife PSF, and it became way too loose and light. Changed some out for 1 qt of Mobil 1 ATF, didn't get much better. Added a bottle of Lucas Power Steering stuff, and it's just right now. Middling in weight, and it's not loose on center anymore.


Edited by rudolphna (03/04/10 09:51 PM)
_________________________
13 Ford Focus SE 2.0L/33,000miles/Pennz Plat PurePlus 0W-20/FRAM Ultra
13 Chevy Traverse 3.6L/14,000mi/QSUD 5W-30/FRAM Ultra
11 Chevy Cruze 1.4T/32k

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#1804272 - 03/04/10 10:40 PM Re: 07 Mustang Power Steering Fluid [Re: Nick R]
dsmith41 Offline


Registered: 03/25/08
Posts: 731
Loc: Kansas City Metro
I used Dex/Merc in my Ford truck when I replaced the P/S fluid back in December and it works fine. It called for Mercon as well.
_________________________
1995 Ford Ranger 2.3L
2001 Chevy Impala 3800
1980 Wheel Horse C-145 8 Speed


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#1804375 - 03/05/10 02:09 AM Re: 07 Mustang Power Steering Fluid [Re: dsmith41]
hardcore302 Offline


Registered: 11/23/09
Posts: 2398
Loc: Suffolk County, NY
Regular Dex/Merc I use Castrol. Mercon V is for the actual Auto tranny, not for ps
_________________________
2007 Ford Mustang GT - FL-820S filter
2211 Chevy Equinox LT - Driveworks filter
I'm a big synthetic blend advocate.

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#1804425 - 03/05/10 06:25 AM Re: 07 Mustang Power Steering Fluid [Re: hardcore302]
mechtech2 Offline


Registered: 09/05/06
Posts: 19479
Loc: Chicago Area
Power steering systems can run very hot in summer.
A full synthetic fluid is a good idea.
A few turkey baster empty/fills in succession is a great idea to get fresh fluid in the system with no mess, and no removal of lines.
Mobil 1 or Mercon V are goo fluid options.
My concern is where that fluid is going in a rather new car - why it is low. This should not be. Hopefully you have an easy leak to fix.

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#1804591 - 03/05/10 08:44 AM Re: 07 Mustang Power Steering Fluid [Re: mechtech2]
tig1 Offline


Registered: 01/03/09
Posts: 9776
Loc: Illinois
I do the turkey baster drain and fill with M1 ATF in my Fords. Have used their fluid since they invented the stuff in the early 90s with never a failure, tranny or PS pump, yet.
_________________________
2007 Ford Fusion 141,000 miles
M1 0-20
2007 Ford Focus 127,000 miles
M1 0-20
10,000 mile OCIs on both engines
M1 ATF
M1 10-30 in all OPE

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#1804761 - 03/05/10 10:56 AM Re: 07 Mustang Power Steering Fluid [Re: tig1]
bdcardinal Offline


Registered: 06/03/05
Posts: 6428
Loc: Santa Barbara, CA
Any Mercon V for the P/S will work. It's what was in there when new.
_________________________
2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter

NRA Endowment Member

"Fear disturbs your concentration."
-Sabine Schmitz

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#1805068 - 03/05/10 03:08 PM Re: 07 Mustang Power Steering Fluid [Re: mechtech2]
HaroldCallahan Offline


Registered: 01/06/05
Posts: 45
Loc: Northern Colorado
Originally Posted By: mechtech2
Power steering systems can run very hot in summer.
A full synthetic fluid is a good idea.
A few turkey baster empty/fills in succession is a great idea to get fresh fluid in the system with no mess, and no removal of lines.
Mobil 1 or Mercon V are goo fluid options.
My concern is where that fluid is going in a rather new car - why it is low. This should not be. Hopefully you have an easy leak to fix.


The owner manual specifies Mercon 5 for Auto Transmissions and Mercon for the PS and the manual transmission as well.

Hard to find just plain Mercon unless you go straight to Ford, I suppose.

I guess I will just use the DexMerc as it does meet Mercon specs. I too wonder why it is down to the add mark. Never was all the way to full in the beginning. I have not seen a single drop of anything leak from this car. Looked underneath and found nothing on the frame or anywhere else. It has almost 50k miles.

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#1805070 - 03/05/10 03:10 PM Re: 07 Mustang Power Steering Fluid [Re: HaroldCallahan]
Nick R Offline


Registered: 07/14/09
Posts: 10456
Loc: Amherst, OH
Originally Posted By: HaroldCallahan
Originally Posted By: mechtech2
Power steering systems can run very hot in summer.
A full synthetic fluid is a good idea.
A few turkey baster empty/fills in succession is a great idea to get fresh fluid in the system with no mess, and no removal of lines.
Mobil 1 or Mercon V are goo fluid options.
My concern is where that fluid is going in a rather new car - why it is low. This should not be. Hopefully you have an easy leak to fix.


The owner manual specifies Mercon 5 for Auto Transmissions and Mercon for the PS and the manual transmission as well.

Hard to find just plain Mercon unless you go straight to Ford, I suppose.

I guess I will just use the DexMerc as it does meet Mercon specs. I too wonder why it is down to the add mark. Never was all the way to full in the beginning. I have not seen a single drop of anything leak from this car. Looked underneath and found nothing on the frame or anywhere else. It has almost 50k miles.



Mercon V has been speced for ford vehicles since the late 90s, early 2000s. Mercon is no longer licensed. Dex/Merc will work, but Mercon V is a much better fluid.
_________________________
13 Ford Focus SE 2.0L/33,000miles/Pennz Plat PurePlus 0W-20/FRAM Ultra
13 Chevy Traverse 3.6L/14,000mi/QSUD 5W-30/FRAM Ultra
11 Chevy Cruze 1.4T/32k

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