It's 02.47 here in the morning, just found a receipt for fuel for 42 liters and I remember the gauge read less than a quarter, maybe an 8th of a tank left or a little more.
I'll know more later today, I have 400 miles to go to get home - the weather is not good so it will be slow going again.
If I'm getting more than 250 miles then I might have a bigger tank fitted, or the gauge is wrong, i will be investigating the fuel situation tomorrow, I don't want to mix fuels so the next Shell garage I see I will fill it up and see how many miles I can drive before the needle rests on a quarter tank, I should have accurate figures today or tomorrow.
Off back to bed now, ZZZZzzzzzzzz.