Aah well, just to confuse things further, according to the endurance standings page:
"Events will begin with a rolling start and last 80 minutes. Each car must stop at least once for either tyres or fuel (or both); there is no minimum amount of fuel which must be taken during the stop."
So one or other is wrong- either you can stop for fuel and take none (effectively come to a stop and immediately leave), or you have to receive a min. of 1 litre over and above what's already in the car. I wouldn't like to guess which is correct
Pancakces on a bike
there is no minimum but obviously taking zero fuel is not stopping for fuel. It's not haddocking rocket science!
The way it would be checked is that in the replay, if tyres are changed you can see it get jacked up and dropped again; if fuel is taken the engine stops of a few seconds. If you stop, kill the engine and then immediately restart it we'll know you're cheating and you will be penalised.
How do you lot manage to work video recorders, that's what I want to know!