That would prove about right Martyn going by the mpg threads I have been involved in on The P1 Woc.
I always use my trips to RCM as a fuel guide as I do the trip so often and I have made it ti RCM on 50% of a tank although the many 50 mph restrictions assisted.
P1's have a 60 Ltr tank.
If I ragged the thing often on the trip things are very different though
Mine too performs much better on cold mornings/days as do many of the other guys with P1's.
Cold damp mornings are the best
