[car10002]

hi

seen engine bay pictures of some e series, some au and some ba models and with the header tanks the water levels are at different heights.

could anyone explain how they work as most have min and max spot and aftermarket ba tanks have min and max hot spot with a max cold spot half way between min and max

and are there any ba models that have a low coolant sensor or do you have to go aftermarket

if the tanks just got min and max is it possible to engrave a mark and ifso where should the mark go

thanks for any answers