Acidently filled 4R70w with Mercon then drained & filled with Mercon V. I need input.
Thread Starter
|
Member
Joined: Aug 2011
Posts: 41
Likes: 0
Acidently filled 4R70w with Mercon then drained & filled with Mercon V. I need input.
Since I have time off, I've been try to get my truck in shape.
I decided to drain, replace gasket + filter and fill my 01 F150 4.6 auto 4R70w transmission. When I went to Napa I specifically asked for Mercon Five because I read pages of information here before I proceeded. I have replaced many trans filter and a half dozen transmissions (a filter each time). She entered my vehicle information for the filter and gasket (mine was leaking a tad, I don't think it's the drain stick). She came back with a case of fluid, the filter with gasket. I shopped around and bough a few things and Lucas Transmission stabilizer.
I drained the TC and pan. Replaced filter + gasket and refilled. I didn't realize I was using the wrong fluid till I was done and about to throw out the trash. I had already filled it with 12 quarts of old Mercon and drove probably 20 miles.
I drained it again, and wiped it all down and installed a new gasket and refilled with 13 quarts of Mercon V.
It drove fine and actaully seemed to drive fine with the regular Mercon. I figure there are 13 quarts of Mercon V and One -+ quart of regular Mercon.
How bad of shape am I? Should I take it in and have the fluid exchanged? I figure I have 92% Mercon V and 8% Old Mercon.
What a pain, I gotta remember to double check EVERYTHING. I'm already out $90 (two bottle of Lucas, fluid, seal) and several hours but I don't want to be out a transmission.
My logic tells me I'm probably ok because they ran this transmission model with old Mercon. Also, Ford recommends to add Mercon V to old Mercon. However, this truck says V on the dip stick so I'm sure it came with V.
What would you do?
I decided to drain, replace gasket + filter and fill my 01 F150 4.6 auto 4R70w transmission. When I went to Napa I specifically asked for Mercon Five because I read pages of information here before I proceeded. I have replaced many trans filter and a half dozen transmissions (a filter each time). She entered my vehicle information for the filter and gasket (mine was leaking a tad, I don't think it's the drain stick). She came back with a case of fluid, the filter with gasket. I shopped around and bough a few things and Lucas Transmission stabilizer.
I drained the TC and pan. Replaced filter + gasket and refilled. I didn't realize I was using the wrong fluid till I was done and about to throw out the trash. I had already filled it with 12 quarts of old Mercon and drove probably 20 miles.
I drained it again, and wiped it all down and installed a new gasket and refilled with 13 quarts of Mercon V.
It drove fine and actaully seemed to drive fine with the regular Mercon. I figure there are 13 quarts of Mercon V and One -+ quart of regular Mercon.
How bad of shape am I? Should I take it in and have the fluid exchanged? I figure I have 92% Mercon V and 8% Old Mercon.
What a pain, I gotta remember to double check EVERYTHING. I'm already out $90 (two bottle of Lucas, fluid, seal) and several hours but I don't want to be out a transmission.
My logic tells me I'm probably ok because they ran this transmission model with old Mercon. Also, Ford recommends to add Mercon V to old Mercon. However, this truck says V on the dip stick so I'm sure it came with V.
What would you do?
Senior Member
Joined: Dec 2006
Posts: 43,542
Likes: 819
From: Joplin MO
Why are you using Lucas? I'd be more concerned about that crap than the quart of old Mercon. You should only use additives for specific purposes - and the only time I'd put Lucas in a trans is if it's sick to keep it going just a bit longer before a rebuild.
Senior Member
Joined: Dec 2006
Posts: 43,542
Likes: 819
From: Joplin MO
Nope. All the Lucas oil treatment does is thicken the oil, which you do NOT want to do unless you have an old worn-out engine that's burning a lot of oil.
Additives are nothing but temporary patches in a can. All oil and transmission fluids have all the additives you need already in them. You even need to be careful using fuel additives.
Additives are nothing but temporary patches in a can. All oil and transmission fluids have all the additives you need already in them. You even need to be careful using fuel additives.
Senior Member
Joined: Sep 2009
Posts: 3,031
Likes: 45
From: The Shenandoah Valley
Did you save the still good Mercon in clean containers for a buddy? 