ans2k

i just checked my coolant level in the reservoir and there was practically none. way below the minimum line. i notice i was very low about 2.5 months ago and i refilled with D.I. water to the max line. and now it is all gone. there is no steam or drips while idling to warm up. any help??? the only thing i have done is the coolant throttle body bypass about 3 months ago. the oil is a normal color, not honey mustard.