As a preventative measure I flushed out Ford's gold coolant and switched to Delo ELC. Prior to the switch i've monitored (via Bank's PDA) my EOT EGT's which consistently ran about 5-7 degrees apart. I've read a bunch of stuff on here about the crappy gold coolant so wanted to switch to ELC. I followed a flush I read on here that used about 25 gallons of distilled water, Restore, Restore+, etc. I put in 3.5 gallons of concsntrated ELC and topped off with distilled water. The pasted couple of weeks i've been getting a bit of burping coming from the bottle and had to top of a few times now with distilled water. What did I do wrong to cause the burbing? I fill/top off to the 'max' line on the bottle when truck is cold but no more. My temps are still within 5-7 of each other so i'm not thinking EGR issues?? Thanks gentleman for your responses!
James



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