Hi, been away and not seen post.
Ours runs past middle and is ok.
Command screen can display all temp data too.
As long as you can see coolant in water bottle and level is on mark, you should be fine.
Enjoy your Bne run.
We are doing weekly runs from Melbourne to Stawell currently, around 500km return, mostly mix 100 & 110kph on freeway and country roads.