grey oil?

[code.mafia]

While doing the EGR delete on the little woman's F250, when I pulled the oil filter and housing off I noticed the oil looked kind of grey. I just changed the oil about a week ago with new Rotella T6. Probably doesn't have 100 miles on the oil before it started smoking (white) real bad and decided it needed an EGR delete.

So what does grey oil mean? Performance was fine, runs good, no misses or loss of power. But loosing coolant.

[colinmitchell111]

when coolant gets in the oil it gets a milky grayish color. could either be headgaskets or oil cooler where they mixed, both would cause loss of coolant and white smoke.

[dieselmatt]

yup

[2 stroker]

Originally Posted by code.mafia

While doing the EGR delete on the little woman's F250, when I pulled the oil filter and housing off I noticed the oil looked kind of grey. I just changed the oil about a week ago with new Rotella T6. Probably doesn't have 100 miles on the oil before it started smoking (white) real bad and decided it needed an EGR delete.

So what does grey oil mean? Performance was fine, runs good, no misses or loss of power. But loosing coolant.

Only 2 places oil cooler or HG's if it started smoking real bad and the egr cooler went well the problem is the oil cooler that is what caused the egr cooler to let go, high temp spreads between the ECT-EOT, need gauges.
2 stroker

[code.mafia]

Well I bought a CTS and SCT for mine as soon as I got it ($1000). But her's has been in the shop since we got it, front axle seals were out (wouldn't shift into 4WD), needed a new PCM (tranny would go into limp home mode, wouldn't shift), driver seat switches, steering wheel controls, etc. So we spent all our money on keeping hers running and then blew an EGR cooler. I go to replace it and find grey oil. I wanted to get gauges for hers (CTS) but we keep throwing money at it and can't afford them yet. She has an extended warranty on it, mine doesn't, but mine has no issues.

[code.mafia]

So if we are deleting the EGR cooler, change the oil, will that fix the problem?

[dieselmatt]

Originally Posted by code.mafia

So if we are deleting the EGR cooler, change the oil, will that fix the problem?

Probably not. The root problem for the EGR cooler going is the Oil cooler being clogged. So, the oil cooler could have popped and that is what let the coolant in to the oil creating the grey color. So, you probably need a new or rebuilt oil cooler.

[colinmitchell111]

Originally Posted by code.mafia

So if we are deleting the EGR cooler, change the oil, will that fix the problem?

no, if you have coolant in the oil which it sounds like because of the color and smoke, your oil cooler and or head gaskets are blown. coolant cant enter the oil system through a blown egr cooler

[dieselmatt]

Originally Posted by colinmitchell111

no, if you have coolant in the oil which it sounds like because of the color and smoke, your oil cooler and or head gaskets are blown. coolant cant enter the oil system through a blown egr cooler

Hold up...the head gaskets might be ok. Of course, a test would be the best way to find out.

[2 stroker]

Originally Posted by code.mafia

So if we are deleting the EGR cooler, change the oil, will that fix the problem?

No, i don't think so because the egr was not the problem yes it is shot but the oil cooler is the problem 99% of the time can't tell you may get lucky. That is why every 6.0 needs gauges
2 stroker