A standard petrol-powered tuk-tuk (auto-rickshaw), such as the common Bajaj or TVS models, typically has a fuel consumption of 25 to 35 kilometers per liter (km/l), which is approximately 60 to 82 miles per gallon (mpg). These vehicles usually feature small 4-stroke engines ranging from 200cc to 450cc. However, in 2026, the "tuk-tuk landscape" has shifted dramatically toward Electric Tuk-Tuks (e-rickshaws), particularly in cities like Bangkok, Delhi, and Colombo. These electric versions are significantly more "fuel-efficient" in terms of cost, typically costing only 1/5th to 1/10th of the price of petrol per kilometer. A modern e-tuk-tuk can travel about 80 to 120 kilometers on a single charge of its lithium-ion battery. While the traditional petrol versions are famous for their "chug-chug" sound and high emissions, the 2026 move toward electrification is driven by both government mandates for cleaner air and the sheer economic reality that electric "fueling" is far cheaper for drivers operating in high-density urban environments where stop-and-go traffic is the norm.