07 Taurus tranny fluid change question - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 14 (permalink) Old 11-20-2018, 07:48 PM Thread Starter
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07 Taurus tranny fluid change question

Currently under 70k miles with unknown maintenance history. Tranny fluild is nicely red. I want to do a pandrop fluid and filter change and will likely add some lucas to that...
Wondering how many quarts of Mercon v i should have on hand for that...
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post #2 of 14 (permalink) Old 11-20-2018, 08:25 PM
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5-6 qts.
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post #3 of 14 (permalink) Old 11-20-2018, 08:44 PM
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6 quarts, measure amount removed. I always use a hand pump to remove as much fluid as possible, a lot less messy when removing pan. My gasket is reusable, never a problem. Tighten pan bolts carefully and evenly.

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post #4 of 14 (permalink) Old 11-21-2018, 05:09 AM
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Why would you add Lucas to a transmission that works correctly? That's just asking for problems IMO
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post #5 of 14 (permalink) Old 11-21-2018, 06:37 AM
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^^^^ +1

If tranny is functioning as designed, the only thing that should be in the tranny is Mercon V.
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post #6 of 14 (permalink) Old 11-21-2018, 09:55 AM
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Agree with @ice445 and @Jeff K I do (wow that was slightly Yoda-esk)

I dont believe in the products from Lucas, but adding a additive to a tranny that exhibits no problems is actually asking for problems. Most additives either expand seals, or bands, or some other wear part in the tranny. With no problems exhibited, you could create wear on those parts by making them swell when no swelling is needed, causing more wear than needed.

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post #7 of 14 (permalink) Old 11-28-2018, 07:27 PM Thread Starter
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I was under the impression that Mercon LV and Mercon V were incompatible. While looking at Tranny fluids today i saw Valvoline has a multi vehicle MaxLife product the claims on the front label to be suitable for both of those application along with others.

Just took a look at a product information sheet on line and they state that none of the manufacturers have endorsed or licensed their product!

I think i will be using the Walmart Mercon V along with Lucas...
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post #8 of 14 (permalink) Old 11-28-2018, 08:51 PM
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Mercon LV (low viscosity) is the specified fluid for the 6 speed Taurus transmissions. Mercon V is specd for the Taurus A4XS and A4XN/4F50N 4 speed trannies in the G1 thru G4 Taurus and Sable. They are not interchangeable.

Multi vehicle fluids are a disaster waiting to happen. Stay away from them.

Unless you are trying to limp a failing transmission along, go ahead and add Lucas. If the transmission is functioning as designed, the ONLY thing that should be in the transmission is Mercon V.

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post #9 of 14 (permalink) Old 11-30-2018, 10:30 AM
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I have a 2006 Taurus SEL and have done a transmission fluid change twice, so the amount of transmission fluid you will need is 13Qts of mercon v, but I would like to tell you that Mercon V will cost you why more money...and the transmission fluid you should uses is Valvoline Max-Life ATF Dex/merc, Mercon LV....this is what I uses and it is way better then Mercon V and cost less....You can go to valvoline.com to see for yourself that it safe for your car.
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post #10 of 14 (permalink) Old 11-30-2018, 12:34 PM
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^^^^^ NO NO NO!!!!!!!!!!!!!!! The Taurus A4XS and A4XN/4F50N trannies uses ONLY Mercon V!! Mercon V is back speced to replace DexronIII / Mercon, but NOT speced as a replacement for Mercon LV.

Merc LV is not compatible with DexIII/Merc or Mercon V.

Around here, Mercon LV is around $1 more per quart than Mercon V.

I trust Fords specs. They are the ones who designed and built the transmissions. I do not trust or believe Valvolines statement that DexIII/Merc is forward compatible with Merc V or Merc LV.

Call a Ford dealer and ask them.
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05 Taurus SEL Duratec - my daily driver
04 Taurus SES Duratec - wifes car - TOTALED
06 Taurus SE Vulcan - wifes new ride
95 Taurus GL Vulcan winter car
Toy #1 - 86 Tbird 5.0 (original owner) - LOTS of mods
Toy #2 - 88 Tbird Turbo Coupe - LOTS of mods
67 Honda 450 Super Sport - completely customized
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