Hey everyone I am new here so just wanted to say hello and ask a peculiar question. I have a 1988 GL turbo wagon that I have had absolutely everything done to it I.e. water pump, thermostat, timing belts, and head gaskets, multiple coolant flushes. The car still runs hot and overheats on the highway so was just wondering if anyone on here has ever experienced this problem or if someone may know where else to turn? Head gaskets were done 3 weeks ago properly with heads machined, took car on road trip out to the gorge in Washington, car ran perfect going there but overheated catastrophically on the return trip home. Thank you