Transmission fluid replacement

FORD F-250
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BRGYPSYEYES
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Vehicle is 1999 Ford F250 4x4 with about 79,000 miles. The manual says not to use a fluid for dual use such (Mercon and Mercon V). Specifications say to use Motorcraft Mercon ATF, can just Mercon V be used? Is the dual use they speak of the ability to use the fluid to replace something other than transmission fluid?

Thanks
Mar 13, 2006 at 8:15 PM
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LOVESCARS
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could blow seals not good! drain with a pump you can attach to a drill and use appropriate rubber hose as required with trans/hydraulic fluid--check with parts store on hose type
Feb 14, 2006 at 6:14 PM
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RAYHUT
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my brother has the very same truck,he used the mercon v and it messed his truck up. so in good advice i would say use the motorcraft mercon atf.
Mar 14, 2006 at 5:28 AM
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PEPPERMRJ
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I think dual use means that the manufacturer claims the fluid can be used in fords and gms.
Mar 14, 2006 at 8:50 PM