Hyundai New i20 (2020-2023) mileage varies, depending on the variant. The petrol-manual variant of New i20 (2020-2023) has a mileage of 20.35 kmpl. The petrol-automatic variant of New i20 (2020-2023) has a mileage of 20.25 kmpl. The diesel-manual variant of Hyundai New i20 (2020-2023) has a mileage of 25.20 kmpl. The diesel-automatic variant of Hyundai New i20 (2020-2023) has a mileage of 0kmpl. Note that the mileage figures are as per ARAI.