I filled my Plus 8 for the first time over the weekend and it took 57.4 litres and if I'd had enough patience, I'm sure it would have taken another 1.0/1.5 litres. Go figure as our transatlantic cousins say!
Brian
1970 Morgan Plus 8 - Moss Box (Indigo Blue) 2014 Morgan SP1 (Rocket Red) 2015 Morgan Plus 8 (Rocket Blue)