Which trans fluid?
Thread Starter
|
New User
Joined: Sep 2008
Posts: 10
Likes: 0
Which trans fluid?
i bought a used 2000 v10 and want to change the transmission filter and then add a mag hytec trans pan. The problem is i have no idea what fluid is in there right now. My manual says to use mercon which is not a problem but what if the previous owner or someone else put in mercon 5 or something else??? i dont want to flush the tranny . what happens if the 2 different fluids are mixed? 
Fleet Mechanic
Joined: Apr 2007
Posts: 1,433
Likes: 7
From: NH
Don't worry about it. The Mercon V is what you want to use becuse Mercon is no longer produced.
https://www.ford-trucks.com/forums/1...?highlight=ATF
https://www.ford-trucks.com/forums/1...?highlight=ATF
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
It will not harm anything to mix the current Mercon V with some Mercon in your transmission.
You'd be better off flushing it and getting out the most Mercon as possible, but it won't hurt anything.
You'd be better off flushing it and getting out the most Mercon as possible, but it won't hurt anything.
Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
Originally you weren't supposed to mix them, but Ford states you can mix the new in with the old, but its only recommended in the power steering or transfer case, not in the trans. If you have it done at the dealer or shop, they'll put Mercon V in. Its whats recommended now by Ford. If you're worried about mixing the old with the new, do a trans flush by following these directions. Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles
Its written by Mark K, a former ford auto trans engineer. Another pointer, don't go cheap with the trans fluid. Replacing the trans is much more expensive then spending a few dollars more on quality fluid.
Its written by Mark K, a former ford auto trans engineer. Another pointer, don't go cheap with the trans fluid. Replacing the trans is much more expensive then spending a few dollars more on quality fluid.
Thread
Thread Starter
Forum
Replies
Last Post
01FordEx
Excursion - King of SUVs
30
Mar 28, 2016 10:59 AM
pete60hill
1973 - 1979 F-100 & Larger F-Series Trucks
2
Jun 26, 2014 07:38 PM
