well to check fuel average completey fill the tank , reset ur odo meter and refill again when reserve kicks in ! divide mileage covered by liters of fuel added !
u dont get an accurate idea about fuel level if u add 1000 rs fuel because it wont show 2nd bar even if 0.5 liter less then 2nd bar level !
and to get good economy out of cvt tranny , forget acceleration , just keep a light foot and wait for the car to gather momentum it self , dont floor it !