All I can say is I must have a bigger tank as well as an accurate gauge. I regularly fill up when the 40 to go light comes on triggered by digital readout on the Roadster. This with around 320 miles covered. I did stretch it to 15 miles to empty once and put in just a tad short of 50 litres. Don't make a habit of this though for reasons Colin mentions.
Last edited by RichardV6; 07/10/21 02:02 PM.
