well in feb 03, i blew the block heater out of the engine...like completely. lol. anyway, coolant was coming out faster than i could put it in. i was 200 miles from home and it was like -25 outside. i finally just said fuckit. i drove it home, did 45 in 5th gear (to keep RPMS wayyyy low) and kept the vent blowing heat in on high. the gauge never went into the red. anyway, what im saying is, could this be residual? i thought the coolant would have burned off by now...