Please capitalize where necessary: detects the filling level of your gas cylinders more
A: Detects the filling level of your gas cylinders more

Q: for instance there is an underage brunello from 1998 at 420 pln.

A: For instance there is an underage Brunello from 1998 at 420 PLN.

Q: what kind of chocolate romance will you have today? barbie is here to give you instructions.
A: What kind of chocolate romance will you have today? Barbie is here to give you instructions.

Problem: how to be human runs every other sunday.
Can you repeat this sentence, but capitalize it?
Answer: How to be Human runs every other Sunday.

Text: it is recommended to take malaria tablets, etc.. under no circumstances should you leave the car in areas outside the camping sites.

Correct capitalization: It is recommended to take malaria tablets, etc.. Under no circumstances should you leave the car in areas outside the camping sites.

Q: make the most of our new light ticket type and pay less when travelling with carry-on baggage only.
A:
Make the most of our new Light ticket type and pay less when travelling with carry-on baggage only.