when i start mine up from cold it sounds like a diesel and really knocky,i done an oil change yesterday and filter and what a nitemere that was,the filter was terrible to change (16v),i put magnetec 10/40 in it and it dont sound much better intill warm,its done 100,000 miles now<i have only had the car 4 about 2 weeks,how long do these engines last? it has full service history,would it be the top end or bottom end?do i need a rebuild? i love this car any help would be great!! thanks!!!