Chris down at Dr Trans ask me to write a review; I said I would be glad. I have a Lawn Care Business and I pull a big load around San Diego in my 2006 Ford F-250. I keep the transmission Power Flushed every 20K miles and it still shifts like new. If you pull anything with your truck call Dr. Trans and ask about the power flush. Just like you change your oil, same is true with transmission fluid.
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