OK I give up what the hell is the mandate?

[Waterloo]

(07-14-2016 )Bmyetrkg24 Wrote:  That's incredible cuz on mine I'm not pulling your leg at all when I say I drain mine till not 1 more drop comes out then I put my Rotella t in her and a new filter and by the time I start my truck run for 5 minutes and shut it off to recheck it she's black already some guys say we'll the top of the head and oil cooler hold about a gallon and a half of the old dirty stuff and that's why but idk

LOL! Soot my friend, SOOT! Do the EGR Tuneup and you will fully grasp the problem... ;-)