Wife came home with my car yesterday and said the "Oil" light just came on. Told her not to worry, the car has a leaking rear main seal and requires a fill up every hundred miles or so. Opened the hood this morning and found the dipstick popped up and oil everywhere. Cleaned the engine, filled the oil and pushed the dipstick in. Drove about a mile and the "Oil" light came on. Pulled over, opened the hood with the car running. Oil everywhere. The dipstick had popped up and oil was gushing out the dipstick tube. This happened about a month ago. Changed the O ring on the dip stick and forgot about it. Any ideas?

Thanks, Friz