- Apr 3, 2017
- Ontario, Canada
Had an MDX in the shop. Signs of plugged heater cores (front and rear) and partially blocked rad (hot/cold spots). Tried flushing with CLR, degreaser, citric acid to no avail. Ended up replacing both heater cores and the rad, along with a new thermostat and water valve. Now that the job is done (ugh), I pulled the bottom tank off the rad, and found this residue. It is like a gritty, slimy jelly. The vehicle did have aftermarket, non Honda Type 2 coolant. No idea what it was, smelled terrible, was greenish in colour. Anybody seen residue like this?