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2011+ Engine Related Questions Sub-Forum to the new engines that debuted in 2011.

Dealer 5.0 tranny fluid change??

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Old 07-22-2014, 10:20 AM
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If you are towing a lot at high weights I would suggest a service/flush sooner than the 100k, but even then that's extreme towing and being very hard on the truck. From the transmissions I've pulled apart these new ones can take a real shot kicking and keep going. The fluids seems to be lasting quite well for the length of service intervals
Old 07-22-2014, 02:44 PM
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Originally Posted by itguy08
I know Ford says 100/150k but I think there are many of us that think clean fluid helps the trans last longer.
There is the answer. Those that think, and Ford Engineers that probably know!



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