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I have a 2003 f-350 diesel with torqueshift transmission. My book says use mercon sp fluid. Has any one changed their fluid and used this. The only place that has it is ford dealers. Can another type be subsituted?
I would reccommend that the dealer do a power flush on the system to be sure all the old fluid is changed. Most places just drain the system and leave a lot of old fluid in the system. Peace of mind is worth a lot in my book.