Recently came out of Dollar General and a lady parked next to me was lifting the hood on her Nissan Cube. I asked if I could help and she said her red oil light was on. I checked the dipstick, which had dark brown oil burnt on it, and it showed nothing. We added a quart of DG 5-30 SN; still nothing. She went back in and got 2 more quarts which then showed about 1/8 " on tip. Another quart brought it up to about 1/4". Looking down the oil cap hole, it was crusty brown. Obviously this Cube had been run short on oil a long time. I suggested she have it checked for oil leaks, then add more oil, and to frequently check the dipstick, not waiting for the red light to come on. She was appreciative of the help which made me feel good. The motor sounded smooth and quiet when she drove away.