he was using castrol 5w 60....that oil is meant to be one of the best....well thats what i use on my car...not to start the which oil is better convo...just wanted to put it out there if that might be of help...well according to what the tuner sounded like he was kinda blaming the oil cooler and when the oil got hot and when he started it again, he found the enigne to be blown...anyhow....ill talk to my mate and get the tuner to pull the engine apart and ill post pix on to see what he says about it and to what you guys think about it...