Last week, I drove my Daihatsu Ascend until almost empty tank. Then we fill up till the max and it came up to almost 42 litre = RM84.00. We set our mileage to 0 to find out how much my Daihatsu Ascend consumes petrol/km. We traveled to Petaling Jaya and back to Melaka. We traveled mostly on highways. We spent about RM77 for 400km. That is 0.1925 cents per kilometer. So, that is basically how much petrol a Daihatsu Ascend (Auto) consumes per kilometer. I guess, it will be slightly more if you drive in town.