Seems like whenever I fill up when almost empty I can only get 40-45 litres in. I filled up on Sunday until the pump stopped on its own, paid, then drove off. The fuel tank only reads 3/4 full. Why would it shut off at 3/4? I have seen it read full before. I just wonder if the guage is shot, or maybe the sender. If this tank holds 60 litres, and i'm filling up only 40-45 litres, then something isn't reading correctly. Any ideas? Thanks.