Oil cooler or head gasket failure?
Somebody please tell me what I have going on .
Was checking out truck yesterday and pulled the dipstick only to see grayish milky sludge looking stuff on it in places , and no oil showing on it. I of course expected the worst . Pulled my oil filter cap only to find perfect black oil . Pulled the drain plug and drained out about 3.5 gallons of oil with no sign of milky oil or water .
Went ahead and did oil change and left alone thinking maybe since the truck sits more than its driven , and I am I a humid area , I was just over thinking it.
Today I needed to use my trailer to pick up some stuff , so I head out .
About 20 miles from home I'm watching g my fuel mileage go up on the dash ( I unhooked my battery's yesterday also) and all of a sudden I look down and my temp gauge is about 3/4 to 7/8 . I instantly pull over and all of a sudden it starts steaming .
I open the hood and it has blown a hose off the coolant degas bottle and is dumping the gray sludge out of it like crazy. I mean the engine is covered in it .
I tow the truck home and am sick to my stomach.
Engine was just replaced . Due to the last motor being bad from diluting of oil from regen.
This motor supposedly had 20 k on it .
It is dpf deleted and egr deleted /blocked off .
Running spartan tunes , set on 300 I think . Has only been running and tuned for about 1200 miles . No check engine lights whatsoever ?
Is this just bad/faulty oil cooler ? Or possibly head gasket too ?
I noticed a few weeks ago just a small bit of white smoke on a couple redlight digs .
Someone please help !
Cliffs : truck is tuned and has been for 1200 miles or less , motor has 20 k on it , EGRs deleted and blocked off. Started to overheat and is puking a but load of oil out of coolant reservoir .