98 318 with 100k, flushed system alls good core open, blend door good, new thernostat 195, new coolant, burped systm, all hoses are hot except bottom rad hose even cap is cold, temp guage way low, even blocked entire rad with cardboard, same thing engine not reaching normal temp, thermostat change twice actually 3 including the 1 that was in it which seems fine according to new ones