I own a early L series diesel freelander and it has over 200000k miles and when I rev it up it puts white smoke out the back and max revs at 2 - 3k I suspect headgasket but it doesent seem to be burning coolant and oil is fine also I have some pictures of the dipstick and it seems the oil has got hot enough to actually burn the dipstick making it blue and red in colour it starts up and idles fine and doesn’t make white smoke also a bit of metal is wrapped around a hole in the dipstick