I didnt have any luck with that stuff either. 160F sounds like a good start. My evaporust is black already.....I have a small ultrasonic tank and will give it a 15 minute try. will report back.
Ok heated evaporated to 160 and put into ultrasonic cleaner. Dropped a slightly rusted socket as well as a degreased syteering coupler and shoes
This is what I got out after 15 minutes. Not even the light rust on the socket was gone...yeah, Im calling Bullshit on this...or mine expired.