Did a long run , mostly Motorway and the car averaged 48.3 , brim to brim. Got down to the display saying 10 miles remaining , filled up and it took 35.5 litres so for a 43 litre tank that’s 7.5 litres and nearly 80 miles , 70 more than indicated , not a bad thing. Is this typical of how the gauge reads on the C-HR?   I was expecting around 4/5 litres left but was quite surprised at 7.5. I wasn’t in a panic but the CEO wanted to fill up way before but she took some convincing there was plenty of