Quote: Would that actually be legal? If you bought it before the changeover and then used it after? I'm not completely up on this, but are they actually going to send customs chappies out after people to find out when the fuel was bought?
It's perfectly legal if the fuel was bought (ie paid for) before November. Otherwise fuel in your tank would be liable to extra tax after November!
This is also why there is a big rush to fill up cars whenever an increase is announced in the budget.