Soot in overflow tank

[miker61002]

(07-13-2020 )marek4792 Wrote:  

(07-13-2020 )tree98 Wrote:  This an 870,871,2350, or X15?

Pretty sure that's an 870 CPL

Yes, it's an 870. The mechanic that did the R&R on the EGR Cooler said the system might be thirsty for a little bit until I work the motor hard enough to open the T-Stat...I did about 450 miles on the I-81 today, so I'll see what it looks like after being off all night... will advise.