Ford used the wrong coolant and ruined the 6.0.
Mine has been changed to late after warranty and cooler was already plugged.
I have been running EC1 Cat ELC coolant with excellent engine cleanliness results . In fact I have just determined that my Head Gasket have been leaking since I bought the truck 8 years ago and what has saved me is the coolant.
ARP studs and HG are going in next week.
I have been programed with Hypertech for 8 years and used ScangaugeII for the same time. But only used fuel and water pressure gauges for the past 5 years.
Have a good time with you truck.
The Hypertech programer for me makes my truck come to life and really takes the weight feeling of my 15k trailer.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..