You like to plead ignorance, but, If you had read my response then you would see, the question you asked is something that you should know, in order to undertake a standard UK driving test. and the capacity of the fluid reservoir is in the car handbook which going by your previous posts you seem to maybe have? in any case If not you can download one from this forum.
As for nonsensical, well if you read my post, you'd see it was in reply to someone else who could already see where you were going with yet another pointless thread.
As I stated you should know this stuff in order to take a driving test in the UK.
I also like how you direct your responses at me, despite others are commenting on your posts and behaviour.... Just choosing to ignore those are you?