Yeah I am running dex. I have gunk in my reservoir and had coolant in my oil before I did the lims. Dont have that problem any more. Maybe the sludge clogged my rad.

I put in a new tstat but didnt check to see if the new tstat actually worked or not before hand. Just assumed that since it was new it probably worked.

Ill try testing the tstat, I also got a new heater core, and radiator to try.