hmm, i would check the oil filler cap for milky residue, if there is, then you know the head is leaking, look out the back exhaust when its warm, if its steaming/white fumes, its gone. could be a seperate problem m8 ;(. but if its overheated, it might of knackered the headgasket, or the headgasket might of been leaking, hence the overheating lol . the oil light is to do with oil pressure, not oil level, so what that indicates, is that when you go round a corner, the oil presure drops, this is probably becuase the oil level is so low, that the oil moves to the side of the sump and you lose pres