AFE Power - Blade Runner - Radiator - Biggest Best 6.0 Liter FORD Diesel Truck Cooling Available

I may have shared this before….had a remote project in the North Slope oil fields.  
One of our subs with a base of ops up there was trying to wring out all the life out of their pre 2007 emissions light trucks because the emissions issues were prohibitive in vehicles that idle 24/7 and run in temps down to -50deg. 
They had a pretty even mix of 6litre Flowerjokes and LLy and LBZ Duramaxes. 
They had like 2 spare Dmax engines on the shelf and about 20 spare rebuilt 6.0s on the shelf….and Zero Cummins B series spares. (They didn’t have a lot of Cummins trucks to be fair, because they didn’t come in a full crew cab until 2010. Mostly just 5500 Dodge service trucks.)

It does occur to me the temperature sending unit may not be accurate. The numbers it does send are consistent.  I ay try installing a new temp sensor at some point. One thing it may do if indeed the sending unit is providing low temp numbers, is to register higher numbers which would give the computer proper information which my cause the engine to run differently. It could also kick the fan to lockup, something I have never seen happen without using the blue wire switch. The doubt of whether the thermostaat is in error is that the truck runs at 185, the thermostat rating, when at 65 or 70 mph. Time will tell. for now, I'm very happy with the running temperature the engine has now. No worries up to 70 and after 75, I need to be observant going up long grades for progressing temperatures to prevent coolant from being vented out. Further updates as they get figured out. 

UPDATE:

Got truck on freeway and ran it up to 76 mph. 76 going up a long grade was the limit, it hit 198 degrees and blurted out coolant. Above 70 going up grade, it will max at 190 and no coolant loss. At 70 or less. It will stay at 183-185 consistantly. At idle it drops to 180-178. I can live with that. Not sure why the system hits limit at 75 mph going up grade. I could probably do 80 on flat ok. Some states have 80 mph speed limits. Get better mileage at 65 anyway.

That's the best I can do with all the cooling upgradegs I've made.  Listed as follows 185 degree thermostat, BPD aluminum coolant pump, rerouting coolant filter return into the radiator, the severe duty fan clutch, blue wire fan lockup switch, the next options would a BPD or similar external oil cooler, replace heater core which may have clogging. The EGR has already been removed prior to my ownership. I'm not the only person who has overheating issues with a 6.0 liter Power Stroke as many videos on YouTube demonstrate. At least I have achieved manageable cooling in my engine.

We don't fly a lot. I just take cash back. The radiator does work seriously well, I'm happy with it. When we get to Arizona, I'll decide whether to put the 192 degree Motorcraft thermostat back in.

Well, at least this truck is keeping you busy tinkering and getting you a lot of credit card airline miles…

your going to cool that sucker off so much it will lose efficiency and milage 🤣