I posted about this at the beginning of fall and still haven't found a solution. I find the expansion tank empty after every 80-100 miles of driving. It's at my mechanics for the second time for this problem. There are no visible leaks and the system holds pressure. There is no white smoke at startup from the exaust, no driveability problems. Heater core was replaced at 70K (108K now). Where is my coolant going?
UPDATE:
Talked to my mechanic today. Blown headgasket. So, what things should i do to her while shes apart? Looking for both preventative maint. items and a little more power. M20 motor btw.