99 auto trans fluid ? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-24-2009, 03:58 PM Thread Starter
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99 auto trans fluid ?

i have an early 99 with an auto trans. at fluid change does it take dex III or merc v?
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post #2 of 2 Old 11-25-2009, 06:19 AM
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NOT AGAIN!!!!! Please use the search engine, look in your owners manual etc..... But to answer your question it only should have Mercon/Dexron III not Mercon V even though Ford is trying to convince people it is okay. If you need the flush procedure use the search engine, I have posted it many times. Oh, you won't find Dexron/Mercon III since it hasn't been manufactured under that name since June of 2007. But Napa has a fluid simply called ATF that is the old Mercon/Dexron III and it is good oil made by Valvoline. PM me with any ?


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