[12Ounce]

Tripletdaddy, you are right ... there are posts where the self-flush procedure is discussed and outlined. In fact, it is the procedure outlined in the Ford shop manual. And it is the procedure that I've begun to use "usually" ... but there are times when you need to drop the pan for whatever reason (an inspection of a reman tranny for example) and the short-method may make sense then. Depends.

I find 15 qts is sufficient for the self-flush procedure. But I always include dropping the pan for a wipe-out and magnet cleaning. The filter gets changed based on how much sludge is in the pan.

Tip#1: It takes a little extra rigging ... but by dropping both hoses to the tranny and "crossing" ... it is possible to back-flush the external coolers during the self-flush procedure. This should leave the coolers even cleaner ....

Tip#2: I haven't completed the task, but I'm installing a toggle switch in the cabin that will bring the radiator fan hi-speed relay "in". This is to be used during stop-and-go city driving and/or trailer pulling. Hopefully this will help with the tranny fluid cooling.