Sometimes i put my foot down, get in a little race with one of my friends or just in a hurry i notice my fuel gauge dramatically drops! Like for example say i'm on half a take saying i have 230 miles on trip computer, when i put my foot down like changing just before rev limiter the time i get into 4th the fuel gauge is at a quarter of a tank sometimes even less and it slowly rises until i switch engine off and restart it goes back to normal. Anyone got a idea on why it does this? Also sometimes say i have 147 miles on the trip computer sometimes by just adding a fiver or just turning my engine off the back on it could go up to 205 or 94 miles on it? It really F*cks me over because i actually never know how much fuel i have in my tank lmfao! Is this the same on all clio's or is there a problem?