well today in the drive through all of a sudden my heater core started pumping antifreeze through the vents again so i had to change it regaurdless of the condition of the rad which oddly enough seems to have alot less crust inside from what i can see. i swear i flushed the piss out of it the last time but it seems some more broke down in the last couple weeks inside there, so today after changing the heater core, i drained the old antifreeze and put new stuff in again. theres still a bit in there tho and im assuming the motor/heads an stuff still probaly have a bit so maybe in a month or something ill do another flush and see how clean everything gets. im gonna look around for the prestone 2 part one tho. last time i just used canadian tires BS crap so knowing them its probaly just colored water lol