Hey guys, i have a 2002 F150, with the 4.6. I have just over 127,000 miles on it. I had a full transmission flush at 50,000 then kinda didn't touch it until last week. I had the pan dropped, fluid changed and filter changed. The tecj suggested not flushing it, but dropping the pan instead, due to the higher mileage. Got the truck back, and it's been great, shifts fine. My question is, since there is not a drain on the t.q., will this fluid eventually mix with the new fresh fluid i had swapped? I honestly don't know a ton about the way t.q. work, i know i had a turbo 350 i swapped in my Cutlass when i was younger.. we filled the t.q with fluid before installing it on the tranny.
Will the transmission fluid mix from the t.q.,and if so, should i go back in a few months and have the same procedure done again, drop the pan and change the filter and fluid, to try and swap out more of the fluid from the t.q.?
Does any of this make sense, or am i just rambling about.. someone stop me.,.