as i've stated prior, my opinions are completely parrallel to those of scottys.... i've seen the devistation and paid the repair bills that came from it... i will never use dex...and i will always state my case.... and for those who say if you moniter yor system and bleed regularly.... i ask, why bother??? just switch to something that isn't harmful, theres so much else to spend your time on than worrying if your coolent system status