Finally got to oil & filter changes, plus the coolant changes over the weekend in both cars. Went with the Prestone after flushing numerous times. Biggest problem was draining the aluminum radiator each time; no drain petcock so had to take off the lower radiator hose after letting it cool down some. Also had to let them run a while each time with the heater on high to flush out the heater core. Spent a whole day on each car but didn't get in no hurry. Well, I did change back to the AFB carb & intake from the Qjet & intake; was having idling and flooding out issues with the Qjet. Thanks for all the feedback. Hopefully this info will be useful to others also. To reiterate what Tom Mooney said, I did not have any issues with the Dex-cool either but I never mixed any other flavor with it... Steve
