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Cold weather P/S fluid in an older Ford?? #4625822
01/06/18 12:31 PM
01/06/18 12:31 PM
Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
bullwinkle Offline OP
bullwinkle  Offline OP

Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
The power steering on the '03 MGM in my sig absolutely HATES below 0F weather, making noise for at least the first 5 miles when started in subzero temps. It was originally spec'ed for Dexron/Mercon in the P/S system-would there be any harm in using full syn Dex VI in it? Anybody tried it??


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4625850
01/06/18 12:57 PM
01/06/18 12:57 PM
Joined: Oct 2012
Posts: 2,495
Staten Island, NY
michaelluscher Offline
michaelluscher  Offline

Joined: Oct 2012
Posts: 2,495
Staten Island, NY
I've had excellent luck with Maxlife ATF in my Taurus

I've had similar success in Windstar/Escort/Explorer

However, panther bodies seem to always have a certain sound to them (PS pump whine or diff whine)

I'd try the two line flush method with a gallon bottle of Maxlife and see where it gets you

Make sure to fully bleed it, there is a special adapter for the reservoir if you can't


'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4625852
01/06/18 12:58 PM
01/06/18 12:58 PM
Joined: Dec 2017
Posts: 3,949
SE British Columbia, Canada
Snagglefoot Online content
Snagglefoot  Online Content

Joined: Dec 2017
Posts: 3,949
SE British Columbia, Canada
Before that I would recommend doing the Turkey Baster trick to remove the old fluid ( 3 times) and try out Mercon V which is backwards compatible with Mercon. Im sure others are going to tell you other non OEM solutions as well.

SF


If you want the job done right......do it yourself.
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4625874
01/06/18 01:13 PM
01/06/18 01:13 PM
Joined: Oct 2002
Posts: 22,172
Colorado Springs
Drew99GT Offline
Drew99GT  Offline

Joined: Oct 2002
Posts: 22,172
Colorado Springs
Add a bottle of this stuff; has fixed any and all power steering issues I've ever had.

Lubegard

Last edited by Drew99GT; 01/06/18 01:13 PM.
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4625885
01/06/18 01:21 PM
01/06/18 01:21 PM
Joined: Nov 2013
Posts: 1,179
UT
BHopkins Offline
BHopkins  Offline

Joined: Nov 2013
Posts: 1,179
UT
For cold weather applications where Dexron III ATF is recommended for p/s fluid, I would recommend either Mobil 1 ATF or Valvoline Maxlife ATF. I would advise against using Castrol Transmax Dex/Merc. Both Mobil 1 and Maxlife have very low pour points and viscosity at -40C. But the Castrol ATF fluid isn't suited well for cold weather.


https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/68D5435223A1FD148025814500665523/$File/BPXE-ANM933.pdf

https://www.mobil.com/english-us/pas...-synthetic-atf

https://sharena21.springcm.com/Publi...0-ac162d889bd3


2013 Subaru Outback 2.5i - Idemitsu 0W-20 & Mobil 1 filter
2007 Mercedes SL550 - M1M 5W-40 & MB OEM filter
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4626022
01/06/18 03:01 PM
01/06/18 03:01 PM
Joined: Jan 2009
Posts: 2,543
wi
dave123 Offline
dave123  Offline

Joined: Jan 2009
Posts: 2,543
wi
M1 ATF my Ford's hated cold loved the M1

Re: Cold weather P/S fluid in an older Ford?? [Re: dave123] #4626042
01/06/18 03:30 PM
01/06/18 03:30 PM
Joined: Nov 2008
Posts: 3,529
Oshawa, Ontario Canada
JC1 Offline
JC1  Offline

Joined: Nov 2008
Posts: 3,529
Oshawa, Ontario Canada
+2 on the maxlife ATF.


2015 Grand Caravan SXT Plus 5w-20 Valvoline SynPower/Fram Ultra Filter
1997 Honda Civic CX 5w-30 PPPP/Fram Ultra Filter
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4626065
01/06/18 03:48 PM
01/06/18 03:48 PM
Joined: Oct 2002
Posts: 584
Pittsburgh PA
1maniac Offline
1maniac  Offline

Joined: Oct 2002
Posts: 584
Pittsburgh PA
I have had some good luck with both the M1 ATF and with LubeGard who makes a P/S fluid and P/S additive that work excellent in cold-noisy FORDs.

Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4628917
01/09/18 07:24 AM
01/09/18 07:24 AM
Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
bullwinkle Offline OP
bullwinkle  Offline OP

Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
Well, after reading as much as I could find (including an interesting post from Molakule about it), I bit the bullet and flushed it with 2 quarts of ST Dexron VI. So far it seems better, now to wait for the bone chilling temps to come back and I'll know if it worked. Old fluid wasn't burnt, but not very red either.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4635835
01/15/18 03:23 PM
01/15/18 03:23 PM
Joined: May 2012
Posts: 531
Connecticut
Sam_Julier Offline
Sam_Julier  Offline

Joined: May 2012
Posts: 531
Connecticut
I run Mobil 1 ATF in the 240 wagon and Mercon V ATF and Power Steering fluid in the 240 sedan. Same pump and steering rack. Both have had many < 0 degree starts and a couple of < -15 degree starts in Stove VT. No squealing in either unit during start up. I can't tell any difference while driving either. The Mercon V is $21/gallon at the local Ford dealer. The Mobil 1 ATF almost twice that price. I'll be using the Mercon V in both cars shortly.

Sam

Last edited by Sam_Julier; 01/15/18 03:30 PM.

2013 Toyota Avalon Hybrid TGMO 0W20, 68k
1993 Volvo 245 T5 10W30, 153k
1993 Volvo 244 PP 10W30, 166k

Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4636194
01/15/18 10:06 PM
01/15/18 10:06 PM
Joined: Jan 2009
Posts: 14,129
Illinois
tig1 Offline
tig1  Offline

Joined: Jan 2009
Posts: 14,129
Illinois
I've been using M1 ATF in my Ford PS pumps for nearly 30 years including my 1996 Merc GM and they always perform well in very cold temps. I just turkey baster the fluid every 10K engine OCI. In your case I would do several quick changes to help the process along.


2007 Ford Fusion 239,000 miles
M1 0-20 EP
2017 Ford Fusion 67K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4637737
01/17/18 02:23 PM
01/17/18 02:23 PM
Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
bullwinkle Offline OP
bullwinkle  Offline OP

Joined: Oct 2004
Posts: 8,768
Cincinnati, OH, USA
Well, happy to report the Dex VI was a night & day difference over the Mercon, just pulled the return line out of the reservoir, plugged the hose fitting, aimed it into a 2 liter bottle, dumped 2 quarts of full syn ST Dex VI in & ran it through. Now it doesn't howl & screech the first 3-4 miles when it's 5F or below. I never thought about Mercon V, but I'm not sure it's necessarily a full synthetic.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4637892
01/17/18 05:28 PM
01/17/18 05:28 PM
Joined: Dec 2009
Posts: 26,901
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline

Joined: Dec 2009
Posts: 26,901
Regina, Saskatchewan, Canada
I'm glad it worked out. I'd suspect it would work well, but every company is a little different. The G37 calls for specifically Dexron-VI ATF as power steering fluid (or Nissan OEM ATF or PSF), but the Dexron-VI is listed all over the place. In the previous iteration, they called for the previous Dexron, and I highly doubt they redesigned the power steering pump for Dexron-VI for the subsequent model year.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Cold weather P/S fluid in an older Ford?? [Re: bullwinkle] #4642482
01/22/18 02:36 AM
01/22/18 02:36 AM
Joined: Jul 2010
Posts: 2,680
Dallas TX
MetalSlug Offline
MetalSlug  Offline

Joined: Jul 2010
Posts: 2,680
Dallas TX
I also use max life on all my ford power steering pump. Im pretty much use max life as Mercon V


NO FRAM OCOD " Orange Can Of DEATH �
03 SVT COBRA 10th anniversary Whipple 600whp M1 5w30 Wix 51372XP
01 Corvette ZO6 stock M1 5w30 / M1-107A
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