× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Expedition repeat heater core failure
Posted to HVAC Forum on 12/3/2014

[...trimmed text...]

New EG (ethylene Glycol) will start about 9.5ph with TDS being 1000-1500 ppm. New Dex-Cool will start about 8.5ph and TDS about the same as EG.

There will be "stuff" in all cooling systems that add... Login to read more.