× 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: Antifreeze ph, when should I advise flush based on ph?
Posted to Technical Discussion Forum on 12/19/2001

This is our spec PH>9.0 good. 8.0< PH < 9.0PH marginal for conventional coolant if you know for sure that it is OAT coolant (not all OAT coolants are orange) then this is ok. PH<8.0 bad corrosion has allready occured. Login to read more.