Dealer only service for my Torqshift, so it only gets Motorcraft SP. I assume it will get Motorcraft LV next time.

 

8 qts s-p every 6 months and a new roll of toilet paper. 173,000 no problems

 

A few more questions.

(1) Mercon LV is Group III. What is Mercon SP?

(2) In switching to LV. Is a "complete" as in all 17.5qt flush necessary?
Who has mixed LV with SP and lived to tell about it? I simply want to drain 8qt of SP and fill with 8qt of LV then change the external filter.



SideBar - How hard is it to change the external tranny filter. Did not find a DIY walkthrough. Can someone with better search skill help link me. Thanks a million.

 

I use Mercon SP, at least until I start hearing reports from people using the comparable fluids.

 

Valvoline Maxlife ATF claims SP and LV specs, and I have read of at least one dealer that uses this instead of Motorcraft fluids. My dad uses the Amsoil ATF, has had zero problems and tows HEAVY.

 

a 1000 miles has gone by since may and I have yet to change the tranny fluid. Gonna try to get it change this month.



Anyone else with some history on
AMSOIL ALT
or
REDLINE D6
or
OTHER FULL SYNTHETIC ATF
for TorqShift?

 

That's a week's worth of commuting for me!

We've been using the new Lucas Multi-Vehicle ATF which carries both LV and SP ratings for a long time now (Lucas gave it to us pre-release) in our chase trucks with no issues. I change whatever is in the pan every 10,000 miles and change the bypass filter every 20,000 miles.

I haven't got a good answer yet but ALL the newer formulations of ATF smell really foul!

http://www.lucasoil.com/products/dis...how&headTitle= - Lucas Oil Multi-Vehicle ATF

 

I was unable to verify any real synthetic (Group IV or Group V) compatible ATF. The manufacturer's tech who I tried to contact are unsure what they are bottling. Simply sad.

So for now I will stick with Ford - Mercon LV (Group III).

 

Mark, if you have time, could you please reply to my post under 6.4L diesels? The title is 6.4l transmission searching for gear becuase of DPFR+4.0? The post is on the 1rst page.

I would greatly appreciate any info you may hae. Thanks.

 

Most of us use Mercon SP or Mercon LV.

 

My dad's been running Amsoil Fuel-Efficient ATF, which is their Low Viscosity variant, for about 4-5 years now in his '03. Shifts great and he tows HEAVY a lot, sometimes grossing over 30k. I've also heard very good things about Valvoline Maxlift Dex/Merc, which is in the same viscosity range and they list it for SP and LV applications.

I'm still running SP in mine, I bought a couple cases when they discontinued it.

 

This is a two and a half year old thread. Just saying...

 

Hah, didn't realize. Thanks Tom.

 

I use Motorcraft Mercon SP. I do changeout the pan's 9 qt's and replace the external filter every 35k or so.

I did see from Mark the other day on a separate post that you can't pump out the TC like the 4R100 and other trannies as seen here and on You Tube without a commercial type exchanger.

I figure half at a time will keep it fresh.

 

even though it is 2.5+ years old thread. still a valid question.