Barko1
Senior Member
In my quest to keep my 7.3 happy I wanted to change out the trans fluid and found this link to a nice routine for getting all the old out.
http://www.thedieselstop.com/forums/f47/changing-atf-7-3l-powerstroke-engine-4r100-automatic-transmission-198641/
It went smoothly (although I need to take it out and get it up to temp and check the fluid hot). So I have put in 19 qts of Mercon, 15 qts Rotella, and have 4 gallons of heavy duty coolant that goes in next. Only really problem is that it is 106 outside
http://www.thedieselstop.com/forums/f47/changing-atf-7-3l-powerstroke-engine-4r100-automatic-transmission-198641/
It went smoothly (although I need to take it out and get it up to temp and check the fluid hot). So I have put in 19 qts of Mercon, 15 qts Rotella, and have 4 gallons of heavy duty coolant that goes in next. Only really problem is that it is 106 outside
