For my 2007 xtrail the fuel gauge seems to go into the red too quickly. When you try to fill it up with say 20 or 30 liters the tank is filled up to the brim suggesting that there was some considerable amount of fuel although the fuel gauge was indicating red for a long time. i pressed a certain button twice ( trip button i guess) and there is a distance that's being shown in kms but cannot read the description as it is written in Japanese. I assumed the distance shown means distance to be covered by the amount of fuel in the tank. I have been keeping an eye on this distance to see it if it comes down as i travel. I filled up my tank the distance read 491km but as i started driving the reading started to fluctuate initially going up to about 515km and then coming down to about 500km and then going down to about 431km. i have travelled about 60km abd the reading is now about 260km which for is rather too low given only 60km that i travelled. Not sure whether the reading will go up again and this reading is just confusing and whether it should be relied upon . Help please!!!