Thats a big risk you are taking 6k for a new engine or 600 for the mod,im only doing mine out of prevention,who know`s it could take 6mths/6 years to go but when it does go helo 6k,as for that mechanic that told you that turn engine off straight away all well and good if you are only doing 20mph plus what have been told is that oil light sometimes doesn`t show up by then its too late, what happens on the motorway at motorway speeds are you really going to turn your engine off in the fast lane.,anyway its your choice ya pays ya money,like i said mine is in tomorrow