Black tar-like jello in the degas bottle???

[Ro Cobra]

Complete loss of coolant. Found that out by just routinely checking all my fluids. Truck runs fine, no check engine, no smoke, everything sounds normal....this same thing happened on my '05 6.0 I used to have. Could this be a oil cooler issue?? This is from a 2008 f250 king ranch.

Thanks in advance!

[srjd]

Do you have anything to monitor your oil temp?

[Ro Cobra]

Originally Posted by srjd

Do you have anything to monitor your oil temp?

None. I also forgot to mention that there is blowby coming out the oil gauge tube and oil cap

[04hdfatboy]

it sounds like your oil cooler ruptured and sent oil to mix with the coolant

[Ro Cobra]

Originally Posted by 04hdfatboy

it sounds like your oil cooler ruptured and sent oil to mix with the coolant

Sounds odd, never heard this happen on a 6.4? I was begining to think it was the cavitation?

[04hdfatboy]

Originally Posted by Ro Cobra

Sounds odd, never heard this happen on a 6.4? I was begining to think it was the cavitation?

i believe if its cavitation the coolant will get into your oil but i could be wrong. Also i think cavitation is more common on the 450's and 550's. Oil cooler failures are not very common on a 6.4 but they can happen. I can think of 1 other member that had that happen. He had pictures and everything. That would be my guess.

[04hdfatboy]

Also if that is the problem i saw in diesel power magazine that elite diesel is coming out with a remote oil cooler. BPD is also.