Coolant Change
I am in the process trying to decide what type of coolant to put in my Cummins ISC. I currant have the ES compleat Glycol Extended Service I know how to flush if going back to the same type of coolan...
Forum Discussion
Personally, from simply an economic perspective, I would have my local Cummins dealer do it. Then you know it's done correctly. The OAT is supposed to be the last flush you'll ever do, so it's a one time shot. If not done correctly, the end result won't be pretty....just sayin....Dennis
