ISX cm871 in frame overhaul nightmare

[Derf]

(12-03-2020 )Mr Hagg Wrote:  Also next time you get oil in coolant always smell it good. THe past 2 trucks we had the complaint oil in coolant we found transmission cooler was leaking.... I knew it right off cause one oil wasnt black in coolant and then it had a special smell.

This was definitely engine oil as the truck came in with not a lick of oil in the pan. I have yet to see trans oil in the coolant, I've only ever seen coolant in trans which was the tranny cooler we replaced