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Old 09-22-2022, 08:27 PM   #15
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I spent 25 or so years in the auto/truck industry before I "retired" into something else. I drive a 6.o ford, the shop I worked at when the 6.0's started blowing head gaskets was "the" shop in the area that worked on them, we saw quite a few. Honestly my old boss is still looked at as "the diesel truck guy" in the area, its his passion and he drives a 6.0. They aren't that bag, but they had some trouble. The 6.4 was worse, the problems were more expensive and final. You won't hurt anything by bulletproofing, other than your wallet. If you delete the EGR or anything else you may never be able to sell the truck, they are coming down on these "deletes" everywhere. The engine oil coolers were the reason the EGR coolers failed, small passages and easily clogged. That was what really set off the overheating. Using good coolant, flushing regularly and add a bypass coolant filter will help. Monitor the coolant and oil temps. No load flat road the oil shouldn't get more then 10 degrees over the coolant, towing the gap is going to get worse. If you see 12-15 degrees flat road no load the oil cooler is clogged. If you are going to over boost it, run nitrous or propane injection you will likely blow the head gaskets. The high-pressure oil system was better on the 06. I feel like the 6.0 reciprocating assembly is more than capable of 300K miles if cared for.
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Old 09-22-2022, 08:50 PM   #16
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The 6.0 is a great engine once bulletproofed and the coolant switched to ELC, but I don't know where the "couple of grand" comes from for bullet proofing a 6.0, last time I checked it started around 6K and went to 20K depending on how far you go. In my experience the ones that tow heavy have the failures, many 6.0s that lead an easy life go upwards of 300-400K with no bulletproofing. Get rid of the Ford Gold coolant though (requires a very thorough flush with up to 40 gallons of distilled water), when the Ford Gold gets really hot the silicates drop out of it and it is my belief (and others) that this is the beginning of the end, the silicates clog the egr and oil cooler leading to the rest of the problems.
I would only have it bulletproofed at a place that specializes in it, like Bullet Proof Diesel in Mesa, AZ. where LoLo Honeymoon had theirs done, or Arizona Affordable Diesel in Tucson, both of them are well versed on the 6.0.
Also it's a good idea to monitor EOT and ECT on the 6.0, the two should stay under 15 degrees difference. The EOT can spike on a grade but should return to within that 15 degree delta quickly on the downhill side. That's one way to check the health of your oil cooler on the 6.0 and can give you a warning before catastrophic failure occurs.
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Old 09-26-2022, 07:10 PM   #17
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I made the leap and glad I did. Turns out there were two injectors that were bad which was the cause of some of my issues. But I did the bullet proof except did not mess with the EGR delete because I didn't want to limit my options. Just took it on a 15oo mile trip, man what a difference new injectors makes. smooth and I got 11 mpg on a 2007 F550/Isata Touring. Great.
Thanks for the input from all ya'll. It was invaluable and I value it.
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Old 09-27-2022, 07:02 AM   #18
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Quote:
Originally Posted by Rookie RVer View Post
I made the leap and glad I did. Turns out there were two injectors that were bad which was the cause of some of my issues. But I did the bullet proof except did not mess with the EGR delete because I didn't want to limit my options. Just took it on a 15oo mile trip, man what a difference new injectors makes. smooth and I got 11 mpg on a 2007 F550/Isata Touring. Great.
Thanks for the input from all ya'll. It was invaluable and I value it.
Glad everything worked out. Just a couple of ideas or suggestions. Run good oil and change it often. Use a fuel additive, I like stanadyne, lubricity and antigen. Use it year round for lubricity. Change your fuel filters twice a year, or at least every 15k. Consider a coolant bypass filter if you donít have one already. Keep good quality coolant in the motor, regular flushing. They make gauges that will plug in if you have an OBD II connector. Consider keeping an eye on oil tempt compared to coolant temp. Wide deltas are an early sign of oil cooler cliffs and a path to EGR cooler problems. The EGR valve is supposed to be cleaned/services once a year or every 15,000 miles.

Enjoy the vehicle and your trips!
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