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please keepus informed of progress. I pull a 14k 5er and even on flat ground can't get 4k miles without accumulating an extra inch of fuel in the crankcase but have always changed it before I got a any error messages. The August reflash was supposed to help fuel accumulation a lot by eliminating regen at idle for Job 1 450's like mine. It didimprove mileage and did stop the regen at idle, but I still accumulate the extra fuel in oil and change it as soon as it gets to the top of the full range with the dipstick inserted only to the bottom of the yellow cap - official Ford definition of too much fuel in oil.
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