Ok, ill try to explain this......

well glad to hear, that was my diagnosis with those symptoms.

 

must be 185-195 F ....

 

The yellow dipstick could be condensation build up,might want to check blow by tube,make sure it's not stopped up. Or when when you will have truck shut off for awhile,take oil fill plug out,cover with a sock or rag. If it's antifreeze you should smell it that way.

 

when you ran the truck for few days without checking to oil and check the oil do you notice the dipstick to be slightly raised out of the tube? i have a 2007 Detroit, and have notice the milky substance but i also notice my dipstick was not all the way down in the tube, i think the tube might be worn out, or the o ring around the dipstick might be worn out. a quick fix i to push the dip stick in and twist it 1 time and that will keep it for blowing up out of the tube. when i worked at ryder that would happen all the time, either a new tube, orings, or dipstick should fix the problem.

 

Go to a Detroit eng. shop near you and I think you will get better service out of shop that only works on det. motors all day ever day.

 

Just hope that it won't take them 6 days before they even take a look at your truck nikmirbre lol