How to know when to change coolant - how much is fair price?
Engine: 1998 DT466E /w that stupid half-radiator/intercooler nonsense.
So I pulled my heaters, looped the lines, and filled up the rad almost to top. Now she seems to run fine, although she gets significantly hotter now. The running temperature before the heater removal was about 175, now it's 195 and will climb to 210 up hills in 70-degree weather. I am concerned the summer is going to push that higher.
I think I am going to re-plumb the heaters under the bus to act as residual radiators. At that time I will likely have to replace most of my fluid, so I think I should go pay for a flush.
How much should I pay for the flush? Is it common for running temps to increase after heater removal?