[Bubbacpt]

My engine coolant level is sitting exactly half way between max & min when engine cold but exactly on max when engine warm. Does it need a top up and what do I buy, obviously not just water as in the UK and very cold. The coolant is a blue colour.
Sorry guys, I'm not great with car knowledge lol.
Does a car naturally use some water as it's always been on max until lately?

[Dazzler]

Sounds like it is spot on to me (no top up needed.) Be interesting to see what others think though. 

[CraigB]

Like Dazz said, it's spot on.

[Phil №❶]

It's perfect where it is. 

[asathorny]

 

sit back now, relax, smoke a cigar in the sure and certain knowledge that all is well   

[Bubbacpt]

Thanks everyone, your comments are much appreciated.