Maybe it’s just a matter of characterising the fuel gauge, but for the moment I’ll take your advice and fill up every 250 miles.
Out of interest did you happen to notice where the needle was positioned after you put the 4 litres in ?.
I’ve also found a lot of air and debris being sucked in behind my neck and windscreen along with fumes. I didn’t notice this with my Roadster, perhaps not having a spare wheel on the back has something to do with this.
