Range Rover Mark II / P38
02' 4.6 87,000 miles
No idea where the coolant is going!
You can fill it full in the morning, drive it all day, and the level will be the same when you come home. Doesn't matter if it is 50 miles or 500. Coolant temperature NEVER goes above 197f above 15mph, or 203f at a idle.
BUT..
You...