ok daughters boyfriends 78 280zx has been sitting for about a year before that ran fine now the oil is diluted with fuel we changed the oil. Started catr ran for 30 seconds then nothing tried and tried and let sit the night next morning start ran for 30 seconds again then nothing. oil is diluted with fuel again. dont know anything really about these motors hoping someone has had this problem and could help us out or buy the car as it sits we are located in Aumsville Oregon. The kid is 18 and does not have extra money to dump into trying to figure it out a a repair shop would rather move on to something else that easier to work on and will cost less in insurance. any help is greatly appreciated.