Step:
I know where you're coming from with your statement about accuracy but in reality if you asked for .50 of a hundred litres they would probably cart you off to the local asylum...
. I think we all know if we ask for a hundred litres it's understood that we'll get a hundred litres. Unless you want to start a debate about the accuracy of the bowser meter. Which in fact would be a valid point. I flew a 172 for nearly two hours the other week and put in 37 litres of fuel to full afterwards. According to the bowser.