Which ATF Fluid?
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,242
Likes: 758
From: Houston, Texas
The All-Knowing Master of Transmissions has spoken and to me this settles it...
You either use Mobil 1 Synthetic or you use a reputable brand that bears the Ford Approved Mercon V label.
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Joined: Oct 2006
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From: SE Missouri
(I used to work with a bunch along with a bunch of PhD's.) x3 on Mobil fluids.
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Joined: Aug 2007
Posts: 610
Likes: 20
From: NE Kansas
I used Castrol last go-around. This time I'll use Castrol Mercon V. Last time around I drained the pan and TC. I see there is a procedure to "pump" out the old fluid. I'll see about following that. But if I don't -- is the Mercon from before and the Mercon V from this time going to be a problem?
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Joined: Aug 2007
Posts: 610
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From: NE Kansas
Hmm... Castrol at AZ looks to be 5.99, whereas Motrocraft at O'Reillys is 4.99
Motorcraft MERCON V - Transmission Fluid | O'Reilly Auto Parts
Will my old Castrol mix ok with Motrocraft Mercon V?
Motorcraft MERCON V - Transmission Fluid | O'Reilly Auto Parts
Will my old Castrol mix ok with Motrocraft Mercon V?
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From: Central Coast of CA
Stewart
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Joined: Oct 2010
Posts: 210
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From: Long Island NY
do any of you use the lucas transmission additive in your trucks? It really seems to have worked well in several commuter cars i have had in the past. i was thinking throwing it in with my next fluid change which is on the to do list
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Joined: Aug 2007
Posts: 610
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From: NE Kansas
Nah, my first mixture was Castrol Domestic Multi-Vehicle with Castrol Merc V. My 2nd mixture was Castrol Domestic Multi with Motorcraft Merc V. The Motorcraft ATF prices $1/Qt less.
From what Mark is saying -- Merc V from any vendor should be OK.
From what Mark is saying -- Merc V from any vendor should be OK.
Now that was funny.
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Whitey Ford
1999 - 2003 7.3L Power Stroke Diesel
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Feb 5, 2012 02:18 PM
