i was driving to work , then suddenly the car cut out, so i pulled over and turned the ignition off, left it for a few mins then tried to start it again, major noise coming from the engine then it would go over 2/3 k revs, so i managed to get it to work then home, checked the oil pressure light and it was at 3/4 then it went to half, checked the oil and it was a little creamy on the cap and a little bit inside, i also noticed the earth cable from the altenator to the body had snapped to, so i went out to try start it there, and nothing, just the fuel light, battery light,came on , it had a new battery a month ago any ideas?