Hey well on friday i changed my fuel filter and after starting it it was running really rough and blowing white smoke for about 2 mins after smoke stoped turned the car off and started it again, it started fine and no smoke but after leaving it for 10 min turned off and starting it again it would start rough and blow smoke. so i got on the net looked up what was wrong and found some one saying ryco fuel filters are no good on ZD30 so i put a post on here asking about ryco fuel filter and i got told it air geting in not the filter so all day sunday i was looking for leaks and found nothing. started the car monday for work and same thing rough and smoke so being worried about it i got a lift to work with my brother, after work came home and tryed starting the patrol locked and water under the car. starting to pull it down not sure if its head or blown head gasket we shall see. no signs before running rough and the smoke,didnt get hot no loss in power nothing. oh well just my luck thats my life lol.