[san rensho]

I've purged the coolant at least three times using the manual method. I've had no problems at all. Remember the coolant system is designed to purge constantly.

What worked for me was after purging, I drove down a steep ramp, so the front of the car was pointing down, this lets the air move up, out of the radiators, where it is purged automatically. Just take a gallon of coolant with you since the level can drop dramatically.