On Sat, 22 Aug 2015 11:11:31 +0100, Andy Burns
wrote:

Chris J Dixon wrote:

Back in the days of mechanical pumps there used to be a mechanical
number display on the side, which was the actual total gallons
dispensed

There still are, you can gauge the relative volumes of unleaded, diesel,
and "super" variations sold while you fill-up.


In one tropical country I go to the locals insist on filling up at the
garage first thing in the morning to ensure that they get maximum mass
for the delivered volume. The reasoning is that as the day warms up
the density decreases. Any truth in that?

--
AnthonyL