Yeah everybody's VX burns oil! I set my cellphone alarm to remind me to check it every week. I usually add a half a quart every three or four weeks. I can't believe that you got away with running 4 quarts low!!!! Supposedly it only holds 4.3 quarts (4 litres) total!!! I'm sure glad you didn't end up posting here with THE bad news, although it seems that the blown engine problem is pretty rare and is caused by extremely sudden loss of oil, not the normal slow burn.