Hi Mark,
Thanks for sharing your info source.

I find it weird that Official Ford Parts Site | Buy Motorcraft & OEM Ford Parts Online | FordParts.com left out the exceptTorqShift®info regarding Motorcraft LV ATF. Nevertheless, I will also stick to Mercon SP ATF as long as I can locate it for my '05 Excursion.

BarnieTrk

 

Fellas,
By the way -- my '05 Ex (175K miles) has also been slipping/shucking/chattering/surging/bucking as well; mostly noticed when on cruise control and especially when going down hill & needs to slightly brake. I checked the ATF level, at idle after running 45 minutes, and the level is fine.

The transmission temp gauge has recently also been acting up. It will drop to 0 then peg out at High then bounce back to normal, and the 'check gages' light will flash on for that moment. it does this once or twice every 50 or so miles.

As a result, I have made an appointment with my stealer to do a trans fluid flush on Jan 2nd. I will also ask that they replace the trans temp sensor before they do the fluid. I'll report back with my performance results after the service and 100+ miles.

BarnieTrk

 

Barnie - I certainly appreciate you posting the information you have. It is definitely interesting. I agree with bpounds (and you) - I think sticking w/ SP is probably a wise choice.

 

I don't see any evidence that SP will be discontinued. It's been several years now that LV has been produced. Stocks of SP would have been depleted long ago if it was obsolete.

The mechanics I trust with my baby are still recommending SP.

 

Bill - the most recent version of the WSM that I have (307-01-1) - in the Torqshift section - states the following:

<TABLE style="WIDTH: 252pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=336 x:str><COLGROUP><COL style="WIDTH: 109pt; mso-width-source: userset; mso-width-alt: 5176" width=146><COL style="WIDTH: 71pt; mso-width-source: userset; mso-width-alt: 3356" width=94><COL style="WIDTH: 72pt; mso-width-source: userset; mso-width-alt: 3413" width=96><TBODY><TR style="HEIGHT: 16.2pt; mso-height-source: userset" height=22><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 109pt; HEIGHT: 16.2pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl23 height=22 width=146 align=left>Item</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 71pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl23 width=94 align=left>Specification</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 72pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl23 width=96 align=left>Fill Capacity</TD></TR><TR style="HEIGHT: 66pt" height=88><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 109pt; HEIGHT: 66pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl22 height=88 width=146 align=left x:str="Motorcraft MERCON LV Automatic Transmission Fluid XT-10-QLV ">Motorcraft MERCON LV Automatic Transmission Fluid
XT-10-QLV
</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 71pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl22 width=94 align=left>MERCON LV</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 72pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl22 width=96 align=left>18.0L
(19.02 qt)
</TD></TR></TBODY></TABLE>

There is no mention of Mercon SP. I can not recall if specific literature was mentioned on LV replacing SP, but I seem to recall there was. I will keep looking for awhile.

 

A spokesman from Ford had this to say about LV - back in 2007.

LUBE REPORT: Ford Unveils New Transmission Fluid

It definitely implies that they are planning for LV to replace SP if possible.

 

This is what I was looking for - I found it in 2010:

https://www.fcsdchemicalsandlubrican...ickref/atf.pdf

It shows only LV for the Torqshift

Also from a previous thread:
Just saw this on BITOG:

TECH TIPS
Approval to Service ALL 5R110 Automatic Transmissions with MERCON® LV
Beginning immediately ALL (2003 to 2010 MY) 5R110 automatic transmissions can be serviced with
MERCON® LV automatic transmission fluid in place of MERCON® SP.
Initially only the 2009/10MY 5R110 automatic transmissions were filled and serviced with MERCON® LV.
In an effort to reduce complexity, Ford Motor Company is allowing all previous model year 5R110
automatic transmissions to be serviced with MERCON® LV automatic transmission fluid. This pertains to
top off as well as fluid replacement. Mixing of MERCON® LV and MERCON® SP in the 5R110
transmission is acceptable. Extensive testing has been performed to insure there are no functional or
durability concerns with the use of MERCON® LV in the 5R110 automatic transmission.
Vehicles affected are F-Series Super Duty trucks (including chassis cab, motorhome, LCF).

I am not bold enough to try it based on only one source, but thought I would post it up anyway.

Ford Torqshift 5w110 takes Mercon LV now - Bob Is The Oil Guy

 

Hi Fellas,

Well, my local dealership did check & change my transmission temperature sensor and flushed my transmission fluid & changed the filter. For what it's worth - they flushed my '05 6.0L PSD Excursion's Torqshift 5R110 AT with Motorcraft LV ATF! They claimed they no longer had any SP and all of the 5R110 transmission flushes were being flushed with the LV fluid.

Lastly, the issue with the shuckin' & chatterin' while in OD & trying to coast down a hil is still happening.....even with the new ATF. I'm not happy, but I guess I'll live with it for now.

BarnieTrk

 

Good to hear about the flush and fill...I'll have to contact my local dealer and see if they'll offer the same service.

In regards to your remaining issue, it sounds like you're having the same issue as I and as it was pointed out to me, it may be the torque converter lockup clutches. They're separate from the tranny and won't cause tranny failure, but will effect cruising fuel efficiency and obvious ride comfort if they're acting up. I find mine sorts itself out after a few downshifts via the skinny pedal each time the system starts cold.
I haven't entertained the cost of replacement as I have neither the time nor money to do or have the job done. I'm sure a dealer will charge me my oldest child, that's kinda why I'm waiting until the tranny decides to give up the ghost and I can just replace it while the unit is out.
Oh, I have 157k on mine and it's behind an 05 6.0, btw.